Abstract: Anti-theft bicycle locking device, wherein the bicycle has a saddle column (4), a saddle (3) and a rear frame tube (2), the device has a foldable locking loop that can be wrapped around the bicycle and a stationary object, the loop comprises a plurality of loop portions of which each has a predetermined length, a first loop portion is constituted by the saddle column (4) being a hollow tube, and a second loop portion (8, 16, 20) that has an outer diameter smaller than the diameter of the saddle column (4) and has a first end slidably connected to and moving in the interior of the saddle column (4), a closure member (11, 17) in the remote end part of the saddle column (4) preventing the removal of the second loop portion (16, 20) from the saddle column (4), a lock (7) is attached to an upper portion of the saddle column (4) close to the saddle (3), and a lock part (9) is attached to a free end of the last portion of the loop, the lock part (9) can be fitted in and engaged by the lock (7), and said loop portion

Abstract: Anti-theft bicycle locking device, wherein the bicycle has a saddle column (4), a saddle (3) and a rear frame tube (2), the device has a foldable locking loop that can be wrapped around the bicycle and a stationary object, the loop comprises a plurality of 5 loop portions of which each has a predetermined length, a first loop portion is constituted by the saddle column (4) being a hollow tube, and a second loop portion (8, 16, 20) that has an outer diameter smaller than the diameter of the saddle column (4) and has a first end slidably connected to and moving in the interior of the saddle column (4), a closure member (11, 17) in the remote end part of the saddle column (4)10 preventing the removal of the second loop portion (16, 20) from the saddle column (4), a lock (7) is attached to an upper portion of the saddle column (4) close to the saddle (3), and a lock part (9) is attached to a free end of the last portion of the loop, the lock part (9) can be fitted in and engaged by the lock (7), and said loop por

Abstract: Dental floss holding and feeding device that has a winding (2) made of dental floss filament (13) that comprises a central opening; a shaft (15) with an axis normal to the plane of the winding (2) and fitted in the opening; a base plate (11) supporting a side of the winding (2) and a closed space in the body (10) for locating the winding (2), furthermore a lead out opening (3) for an end portion of the winding (2); and a cutter (8) arranged across the path of the lead out filament (4) to cut the filament when being suddenly pulled, wherein the winding (2) has a flat, narrow shape compared to the size of its own diameter, the body (10) has a larger plane constituted by the base plate (11); the body (10) has a narrow rear edge (14) to which a cover (20) is attached that can be folded in a position parallel to the base plate (11) and opened by unfolding; an envelope (13) is attached to the base plate (11) that defines the closed inner space, the envelope (13) has an upper surface that is substantially parallel t