Abstract: A supporting apparatus for an electronic device chassis includes a base, a supporting assembly fixed to the base to detachably mount the chassis, a guiding block, an operation member, and a latching member. The guiding block is slidably attached to the supporting assembly along a first direction. The latching member and the operation member are slidably attached to the guiding block along a second direction perpendicular to the first direction. A first protrusion with a first slope and a second protrusion with a second slope protrude from the guiding block. The operation member includes a first sliding block with a third slope abutting against the second slope. The latching member includes a second sliding block with a fourth slope abutting against the first slope. An inserting pin extends up from the guiding block, to engage in the chassis.

Abstract: The instrument stand, which supports an instrument on a wire rack or similar surface, includes a body, a biasing element and a hook member. The stand is capable of connecting to an instrument, and the biasing element, preferably formed by at least two legs, is also connected to the body, wherein when contacting a surface the legs bias the body in a direction opposite the surface. The hook member connects to one of either a leg or the body, such that the hook member is capable of engaging the surface to thereby oppose the bias by the legs.

Abstract: A movable support seat for a shower head includes a holding member to receive a removable shower head; a moving member moving vertically along a post and being used to receive the holding member; the moving member having a body disposed to the post, at least one movable retaining paw axially fixed to the body, a resilient element installed to a predetermined position of the retaining paw to actuate the paw portion to elastically engage with a peripheral outer surface of the post and to position the moving member to the post such that when a pressing portion of the retaining paw is pressed, first or second abutting wall of the retaining paw disengages from the post so that the moving member is adjusted freely on the post.

Abstract: A bracket is used for an electronic device into a frame. The frame includes two opposite wall surfaces and at least one pair of guiding rails disposed on the two wall surfaces. The bracket includes a main connection portion, two main elastic arms, and main engaging posts. The main elastic arms respectively extend from two ends of the main connection portion. The two main elastic arms extend towards the same direction with a clamping space defined between the two main elastic arms for accommodating the electronic device. The main engaging posts are respectively disposed on sides of the two main elastic arms facing each other, so that the main engaging posts extend towards the clamping space for engaging lateral surfaces of the electronic device. The two main elastic arms respectively slide along the two guiding rails, so as to fix the electronic device into the frame.

Abstract: A retainer structure having excellent workability of attaching to and removing from a panel is obtained. In an approximately cylindrical retainer main body (22), a cap holding portion (26) for attaching a cap (18) which is an attached member, and a panel clamping piece (32) contacting a body panel (14) from a side opposite to a seal packing (20) so as to clamp the body panel (14) between the panel clamping piece and a flange portion (24), are formed. The cap holding portion (26) and the panel clamping piece (32) are formed at positions different in a circumferential direction of the retainer main body (22).

Abstract: A wall mounting bath accessory assembly contains a fixing member including a contacting fence with a recess and two engaging portions, and the engaging portion including a shoulder arranged on an upper end thereof; a retaining member including a body, an first hook, and two second hooks; the first hooks being inserted through an upper end of the fixing member to retain with the recess so as to limit the retaining member; the second hook including a hooking segment to retain with the first hook and the recess, and when a lower end of the retaining member is pushed inward, the engaging portions of the fixing member abutting against the retaining member to cause a resilient deformation so that the retaining member retains with the engaging portions, and a top end of the anchor being stopped by the shoulder so that an upward displacement of the retaining member is limited.

Abstract: The fuel tank unit includes a fuel cutoff valve fastened to a support body. The support body and the casing of the fuel cutoff valve are made of first and second resin materials having different rates of fuel swelling. The fuel cutoff valve is fastened to the support body via a fastening mechanism. The fastening mechanism entails engaging a first support engaging portion and a second support engaging portion of the support body in first and second fastening engaging portions composed of hooks formed on the casing of the fuel cutoff valve, at first and second hook engagement levels that represent the bite of the hooks. The engaging portions are designed such that prior to fuel swelling of the support body and the base cover first hook engagement exceeds second hook engagement, whereas subsequent to fuel swelling second hook engagement exceeds first hook engagement.

Abstract: A mounting apparatus for a data storage device comprises a bracket and a locking member attached to the bracket. A plurality of fixing holes is defined in one side of the data storage device. The bracket comprises a bottom wall, a first sidewall and a second sidewall. The bottom wall, the first sidewall and the second sidewall together define a receiving space. A through hole is defined on the first sidewall. The locking member comprises a securing portion and at least one resilient piece extending from the securing portion. A latching portion is located on the resilient piece. The latching portion extends through the through hole to engage in the fixing hole, and configured to disengaged from the fixing hole by the resilient piece elastically deformed.

Abstract: A keyboard fixing structure for fixing a keyboard in an opening of a housing is disclosed. The keyboard fixing structure includes an engaging portion, a first fixing portion, a first flexible connecting portion, a second fixing portion and a second flexible connecting portion. The engaging portion presses a first side of the keyboard in the opening. The first fixing portion is fixed on the housing, and the first flexible connecting portion is connected to the first fixing portion and the engaging portion. The second fixing portion is fixed on the housing, and the second flexible connecting portion is connected to the second fixing portion and the engaging portion. The first flexible connecting portion and the second flexible connecting portion cooperatively provide resilient force to the engaging portion in a first direction for driving the engaging portion to press the first side of the keyboard.

Abstract: An electronic device includes an enclosure and a locking assembly. The locking assembly includes a fixing sleeve including a fixing end hermetically fixed to the enclosure, and an opening end away from the enclosure, and a locking bracket. The locking bracket is attached to the fixing sleeve and defines a through hole defining a passing portion and at least one locking portion communicating with each other. The electronic device is position to a fastener by the fastener passing through the passing portion and being positioned in the locking portion of the through hole.

Abstract: A fixing module and a case having the fixing module are provided. The case includes a plate having at least one first mounting hole, and a fixing module. The fixing module is used to fix an electronic device to the plate. The electronic device has at least one second mounting hole corresponding to the first mounting hole. The fixing module includes a base, a sliding member, and at least one resilient element. The base is mounted to the plate. The sliding member is movably disposed on the base. The resilient element located between the base and sliding member includes at least one pressing portion and at least one locking pin located on the pressing portion. When the sliding member is in a locking position, the sliding member presses the pressing portion such that the locking pin passes through the first mounting hole and inserts into the second mounting hole.

Abstract: A hand-held tool has a leading edge which is inserted into a price channel and which has a tag exit port defined therein to be located in the price channel when in use and a trailing edge having a tag entrance port defined therein and into which a flexible tag is inserted. A bore connects the entrance port to the exit port and a flexible tag is forced through the entrance port, through the bore and out of the exit port to be positioned in the price channel.

Abstract: A locking sensor for locking into the recess of a housing with a sensor body, of locking elements, that are arranged on the sensor body and that extend in the direction of a lengthwise axis over a length. The locking elements have steps and at least two steps are spaced apart from each other in the direction of the lengthwise axis.

Abstract: The present invention relates to a plate holder and a liquid crystal display having the same. There is provided a plate holder for fixing a plate in a liquid crystal display. The plate holder includes a base portion, a body portion formed on an end of the base portion and laterally extending therefrom, and a head portion formed at a distal end of the body portion. The body portion includes a first body portion and a second body portion disposed to be spaced apart by a predetermined interval from and to face the first body portion.

Abstract: A bracket for mounting a portable aspirator to a wall. The bracket allows easy securing and removing of the aspirator with one hand in emergency situations. The bracket will also secure the aspirator against a 10 G loading force. Electrical leads on both the aspirator and the bracket allow the aspirator to charge when secured.

Abstract: A system for adjustably positioning an accessory may include a track and an accessory removably coupled to the track. The track may include an upper portion and a lower portion defining a channel therebetween. The upper portion may include an upper flexible segment extending along a length of the channel wherein the upper flexible segment is outwardly and inwardly deformable with respect to the channel. The accessory may include at least one connector extending from the accessory, the connector being removably insertable into the channel of the track by deforming the upper flexible segment with respect to the channel, the at least one connector including a substantially horizontal portion and a substantially vertical portion wherein, when the connector is inserted in the track, the substantially vertical portion of the connector secures the accessory to the track.

Abstract: A mounting adapter for mounting a device on a support rail includes a central body, at least one rail attaching member, and at least one detent. The rail attaching member projects rearward from the body and is configured for releasable attachment to at least one of the upper and lower flanges of the support rail. The detent projects forward from the body. The detent is resiliently deflectable relative to the body and configured for releasable attachment to the electronic device.

Abstract: An accessory device (1) for an aquarium is described, in particular for a thermal heater (2), which may be vertically positioned. It comprises an accessory device (2) for operation of said aquarium and supporting means (4, 5) for supporting the accessory device (2) on a wall of the aquarium tank. The supporting means (4, 5) comprise a supporting body (4) which may be attached to the aquarium wall and latching means (5, 10), which are integral with the accessory device (2) and may be removably associated with said supporting body (4). The supporting body (4) supports the latching means (5, 10) and the accessory device (2) and allows selection of vertical position of accessory device (2) with respect to supporting body (4).

Abstract: A cable clamp includes a base, a cover, a supporting plate, and a piece of foam secured to a top of the supporting plate. The cover includes a main body, a connection member and a fixing member extending from opposite ends of the main body. The connection member is fixed to a first end of the base. A latch is formed on a second end of the base to engage with the fixing member of the cover, the supporting plate is slidably installed to a top of the base.

Abstract: A rotatable display mount for mounting a display device at desired rotational orientation. In one set of embodiments, the rotatable display mount comprises a base plate adapted to operatively connect the display mount to a mounting surface, a sprocket plate operatively connected and rotatable in relation to the base plate, the sprocket plate adapted to be operatively connected to the display device, and a latch member selectively engageable with the sprocket plate. Rotational orientation of the display device is established at defined angular orientations by engagement of the sprocket plate with the latch member.

Abstract: A mounting apparatus includes a bracket defining a clamping hole, a receiving rack, a connecting member fixed to the receiving rack, a receiving member fixed to the connecting member, and a latching unit. The latching unit includes a pivoting member pivotably mounted to the receiving member, a first resilient member, a second resilient member, a rotating member pivotably mounted to the pivoting member, a contact member abutting against the rotating member, and a hooking member clamped to the rotating member. The contact member and the hooking member are slidably mounted to opposite ends of the pivoting member, respectively, and can be moved towards each other. The first resilient member resists against the pivoting member and the hooking member to return the hooking member back. The second member resists against the pivoting member and the contact member to return the contact member back.

Abstract: A suspending buckle mechanism of output water device, which connects to a supporting arm protruding out of a wall, includes a sucker mechanism, a suspending tube, a supporting hoop and an elastic buckle. The suspending tube has an upper part with a through fixing hole and a lower part fixed to the sucker mechanism. The supporting hoop includes: a connecting sleeve, on which an axial groove is internally and externally disposed, and two connecting sheets. Through holes are disposed in the connecting sheets. The connecting sheets are symmetrically fixed around the connecting sleeve. The elastic buckle is placed between the connecting sheets. The connecting sheets are inserted in the upper opening of the hanging tube in order to make the convex columns of the elastic buckle protrude out of the through hole and then inserted in the fixing hole, so that the connecting sleeve can clasp the supporting arm.

Abstract: A mounting bracket for a vehicle grab handle includes spaced apart first and second roof attachment portions for mounting to a roof side rail and spaced apart first and second support portions depending downwardly toward a vehicle cabin. The first support portion depends from the first attachment portion and the second support portion depends from the second attachment portion. An interconnecting portion extends between the spaced apart first and said second support portions for mounting the vehicle grab handle. At least one reinforcing flange extends along at least one longitudinal edge defined by the roof attachment portions and the support portions. The at least one reinforcing flange extends from one or both of the first and second attachment portions a limited distance to a location spaced apart from the interconnecting portion.

Abstract: A method and system to support simultaneous unlatching from a rack of two or more adjacently mounted and vertically aligned hardware components. One interface bracket is secured to one vertical rail of the rack, and a second interface bracket is secured to a second vertical rail of the rack on an opposite side of the rack. A set of latches are provided in communication with each interface bracket, with the number of latches corresponding to the number of hardware components in communication with the interface bracket. Actuation of one of the latches releases fastening of at least one hardware components from the rack, and accommodates removal of the release component from the rack.

Abstract: A mounting apparatus includes a bracket defining at least one clamping hole, a receiving rack, and a latching unit pivotally mounted to the receiving rack. The latching unit includes a fitting member, a locking member pivotally mounted to the fitting member, a contact member slidably attached to the fitting member, and a first resilient member resisting the contact member and the locking member. A latching block extends from the locking member to latch with the receiving rack. The contact member includes at least one latching tab and a pushrod opposite to the latching tab. When the latching tab is moved to deform the first resilient member, the pushrod rotates the locking member, resulting in the latching block disengaging from the receiving rack. Elasticity of the first resilient member engages the latching tab in the clamping hole.

Abstract: A vehicle wash system having a plurality of vehicle treatment components includes with at least one support member. The support member is constructed of a base material and has an outer surface. An elongated cover includes an interior surface and an exterior surface. The interior surface of the elongated cover has a first color and a size and shape that substantially matches the outer surface of the support member. The elongated cover is readably engageable with the support member to protect it from contact with fluid and debris. The elongated cover is formed of a readably cleanable material such that fluid and debris can be easily wiped off of its exterior surface.

Abstract: A vehicle wash system having a plurality of vehicle treatment components includes with at least one support member. The support member is constructed of a base material and has an outer surface. An elongated cover includes an interior surface and an exterior surface. The interior surface of the elongated cover has a first color and a size and shape that substantially matches the outer surface of the support member. The elongated cover is readably engageable with the support member to protect it from contact with fluid and debris. The elongated cover is formed of a readably cleanable material such that fluid and debris can be easily wiped off of its exterior surface.

Abstract: A television mounting system is disclosed. It includes a wall plate adapted to be secured to a wall and a monitor plate mountable on the wall plate. Expansion plates may be secured at selected locations on the monitor plate to accommodate mounting of various sizes of display screens, such as flat panel televisions.

Abstract: An article support having a mount section comprising: a first engaging element (18) that has a pillar protruding from a base and a first hook extending from the pillar so that it can be displaced elastically; and a second engaging element that has a pillar protruding from the base and a second hook extending from the pillar so that it can be displaced elastically. The first hook and the second hook can be displaced elastically independently of each other and are disposed on the sides opposite to each other with respect to the pillars and. When the mount section is attached to an object, the pillar of the first engaging element bears a load on the object and the first hook and the second hook are engaged with the object to fixedly hold the article support on the object.

Abstract: A display and mounting clip, particularly adapted to mount flatware to a display board, has a shank supporting a closed loop through which the displayed item is inserted. Opposed support arms, coupled to the shank, support the item within the loop. The shank is adapted to extend through the mounting board. Flexible locking means extend from the shank and can be placed into a splayed orientation below the mounting board to retain the clip in position.

Abstract: A cushioned holder device for holding articles includes an attachment base, configured to be attached to a support structure and a holding member configured to receive and hold an article therein. The holding member is coupled to the attachment base and includes two generally upright arms which collectively define a containment area therebetween. A cushion is associated with the holder at a lower portion of the containment area to provide a cushioned interface between the article and the holder. The cushion includes an upper contact surface and an opposing lower contact surface, with an intermediate riser extending therebetween.

Abstract: A shelf apparatus according to one embodiment of the present invention includes first and second upstanding posts each having a plurality of horizontally-extending grooves in an external surface thereof, the grooves spaced vertically from one another. First and second shelf support clamps are supported by the first and second posts, respectively. The clamps each have a clamp body received only partially about its corresponding post, and the clamps each include a horizontally-extending protuberance such as a rib received in one of the grooves of its respective post. The apparatus further includes first and second shelf brackets supported by the first and second clamps, respectively, and a shelf supported by the first and second shelf brackets.

Abstract: A design part composing a lamp unit includes a plate part positioned at a cabin side and covering an attaching hole of a roof trim, and a pair of vertically extending parts. The vertically extending part includes a frame part vertically extending from the plate part in a direction perpendicular to the plate part, and a movable piece continued to a connecting part of the frame part at a far side from the plate part. When a function part is pushed into between the pair of movable pieces, the gap between the movable pieces is increased, and a locking margin between the movable piece and an outer edge of an attaching hole is increased. Thus, holding force to hold the roof trim is secured.

Abstract: A clamping system includes a clamp with an optional cap or other extender that adapts the clamp to walls, ceilings or other partitions of different thicknesses. Preferred clamping arms “toggle” out of the way during installation. Kits can include multiple extenders of different sizes. Contemplated systems can be used for installing speakers, lighting fixtures, television monitors, wall switches and myriad other devices.

Abstract: A mount (10) for securely mounting an item has at least one first component (12, 14) configured to be secured to an item to be mounted and a second component (16) configured to be secured to a support. The first (12, 14) and second (16) components have complimentary inter-engaging means (20, 52) at a first point of contact (22), and a retaining clip (34) at a second point of contact to fix the relative position of the first component (12, 14) with respect to the second component (16).

Abstract: A device for locking an electric apparatus to a supporting rail with two opposite raised edges, the device including a first attachment unit configured to be connected with a first raised edge of the supporting rail; a second attachment unit configured to be connected with a second opposite raised edge of the supporting rail, configured to be movable in an unlocked position; and an operating element connected to the first and second attachment units and configured to convert a translation movement of the first attachment unit into a rotary movement of the second attachment unit, the second attachment unit including a rod that is configured to perform the rotary movement when actuated by the translation movement of the operating element.

Abstract: A lamp fixing member includes a first body part and a second body part. The first body part includes at least one first lamp fixing portion disposed on an upper surface of the first body part. The second body part is slidably combined with the first body part. The second body part includes a second lamp fixing portion being combined with the first lamp fixing portion and defining a space through which a lamp is inserted to be fixed.

Abstract: A clamp is provided suitable for clamping an object to a balustrade or other analogous structure. The clamp is attached by clamping the slats or spindles in the balustrade between a clamping nut and an adjustable jam plate. When the clamping nut is disengaged from the clamp, the jam plate may be slide along a shaft to position the jam plate. When the clamping nut is engaged with the clamp, the jam plate is locked in place on the shaft.

Abstract: An improved pony bottle bracket that is light weight, compact, simple to use, and facilitates a quick and easy set-up is disclosed. A push button latch enables a diver to quickly disconnect the pony bottle from the main bottle. The pony tank bracket and base unit bracket are mounted by use of a belt and adjustable band straps. The locking mechanism is self-contained, thereby eliminating or minimizing the use of separate components (e.g., no clevis, hitch, cotter or quick release pins) which may be lost. The bracket also eliminates or reduces the use of any items which may entangle the diver or entangle other objects in the diver's surroundings (e.g., no string, cord, chain or lanyards). The bracket is bidirectional (e.g., reversible) such that the top bracket mount may be rotated between about 0 and 180 degrees.

Abstract: A fixation member, made of a single piece of elastic material, used for mounting an object to a frame, and in particular for mounting an automotive lamp in a reflector housing, includes a first portion and a second portion interconnected by first spring means. The first portion comprise first catch means for engaging with a frame to which the fixation member is to be fixed after the first portion is pushed towards the second portion, while the first spring means pushes the second portion against the frame. The first portion furthermore comprises second catch means for engaging with corresponding catch means of the second portion when the first portion is pushed further towards said second portion against an increasing force of the first spring means, whereby the catch means retracts and thereby disengages from the frame. The second portion is provided with second spring means for abutting against the frame thereby pushing the second portion in a direction away from the frame.

Abstract: A keyboard-display assembly is mounted includes a tray for holding a keyboard that is moveably mounted within a rack. The display assembly is mounted to the tray and includes a first display support arm and second display support arm that support a display. The display assembly is moveable between a storage position and a viewing position where, in the storage position, the display is in a generally horizontal position with the screen face of the display facing downward and positioned forward of the keyboard within the tray. In the viewing position, the display assembly rotated into a generally vertical position.

Abstract: In a fixing tool, a fitting portion includes a post, clamp plate, elastic press piece, and locking/unlocking piece. The clamp plate can be inserted through a fitting hole from an upper surface side of a chassis. The elastic press piece is elastically abutted against the upper surface of the chassis. The locking/unlocking piece is formed at part of the elastic press piece. When the clamp plate is inserted through the fitting hole and moved in one direction along a lower surface of the chassis, the locking/unlocking piece engages with an edge of the fitting hole opposite the direction of movement.

Abstract: A shingle system, mountable to a support surface, includes overlapping shingle assemblies. Each shingle assembly comprises a support bracket, having upper and lower ends, secured to a shingle body. The upper end has an upper support portion, extending away from the shingle body, and an upper support-surface-engaging part, engageable with a support surface so that the upper edge of the shingle body is positionable at a first distance from the support surface to create a first gap therebetween. The lower end has a lower support portion extending away from the lower surface. The support brackets create: (1) a second gap between shingle bodies of the first and second shingle assemblies, and (2) an open region beneath the first shingle assembly fluidly coupling the first and second gaps.

Abstract: An anchoring structure for components such as a ball-stud grommet includes a head and a plurality of retention legs defining lips in spaced, confronting relationship with a surface of the head. The legs are arranged in a circle and are provided in sufficient number and in sufficiently close spaced relation that at least one leg on opposite sides engage edges of a slot for any rotational position of the fastener relative to the slot.

Abstract: A clip engages an assist grip with an engaging portion of the clip engaged with a clip insertion hole of an attachment part. The assist grip is mounted to a body panel by engaging a first locking pawl of the clip with a rear surface of the body panel, and engaging a second locking pawl of the clip with a front surface of the body panel. A pressure plug is fitted into a rear end gap portion of the clip when a cap on the attachment part is closed.

Abstract: A twist lock mount for quick mounting and positioning a device to a support includes a mount receiving member attachable to or integral with the support and a mounting member attachable to or integral with a device to be mounted. The receiving member provides a channel covered by flanges that further define a narrower channel or slot. The mounting member is configured to slide into the channel when it is in one rotational orientation and to lock securely into place when it is in another. A rotation in the opposite direction will unlock the device so that the mount can be slid out of the channel quickly and easily. The twist lock mount simply and effectively prevents movement in the longitudinal, transverse and axial directions and is well suited for use in harsh, high vibration environments.

Abstract: A clamp detachable by handling from the front side of a plate is provided. When the main body of the clamp is pressed against the plate with an abutting portion elastically deformed and a connecting portion thrust into an attachment hole, and is moved in the direction parallel to the front and reverse surfaces of the plate, a retaining portion is moved to overlap the reverse surface of the plate with a first and a second projections engaged in locating holes formed in the plate. As a result, the main body is pressed against the front surface of the plate, the retaining portion is pressed against the reverse surface of the plate, and the first and second projections engaged in locating holes prevent displacement in the direction parallel to the front and reverse surfaces of the plate, whereby the clamp is fixed to the plate.

Abstract: A bracket coupling structure is disclosed having hook portions 8, disposed on two positions of a base plate 5 of a panel-side bracket 2, and having L-shape cross sections directed outward, respectively, with respect to a rotation center wherein under a condition in which the hook portions 8 are inserted to a mounting opening 30 of a trim 4, the panel-side bracket 2 is rotated in a mounting rotational direction to cause the hook portions 8 to engage a peripheral edge of the mounting opening 30 for permitting the panel-side bracket 2 to be fixed to the trim 4. Disposed on leading ends, facing the mounting rotational direction, of the hook portions 8, respectively, are resilient catch-up blades 15 each of which is sloped in a direction to be separate away from the base plate 5 toward an upstream of the mounting rotational direction.

Abstract: A profile-section support system, in particular, for industrial-fair and exhibition construction, has hollow profile-section supports (10) of polygonal cross section, which on at least one of their outer sides (14, 15, 16, 17), along the edges with ribs (18, 19, 20, 21), which between them enclosed grooves (22) with peripheral undercuts for anchoring fast-action connecting elements (43, 44, 63) for connecting further profile-section supports (10) or other parts, and which in the corner regions in the interior are provided with inner corner grooves (23). Spreading apart of the ribs (18, 19, 20, 21) with deformation of the hollow profile-section side (14, 15, 16, 17) enclosed between them is thereby possible. On outer sides (14, 16, 17) adjoining one another of the hollow profile-section supports (10), ribs are disposed. Two ribs (18, 19, 20, 21) on the edge, between the adjacent outer sides (14, 16, 17) of the hollow profile-section support (10), between them enclose an outer corner groove (24).

Abstract: A mounting bracket (226) has a toolless fastening feature for securing to a frame (18) having regularly spaced mounting apertures (19). The mounting bracket (226) has a bracket body (270) which includes a first tab (256) and a second tab (258). The second tab (258) has a guide aperture (264), a clip member (260) and a tab member (262). The clip member (260) and the tab member (262) extend forward of the second tab (258), spaced apart from the guide aperture (264), such that the guide aperture (264) will register with one of the mounting apertures (19) when the clip member (260) and the tab member (262) extend through two of the mounting apertures (19).