Abstract: A method and apparatus for screening an incoming telephone call from a caller on an external telephone line connected to an answering device for recording the call includes inserting into the telephone line a circuit comprising a voltage sensitive device and a bridging device for allowing a handset of a telephone set connected to the telephone line and remote from the answering device to be picked up to listen to the call. The handset of the telephone set is picked up to enable a speaker component of the telephone set without interrupting operation of the answering device. The incoming call is listened to via the enabled speaker component while the answering device operates. A microphone component of the telephone set is optionally enabled to speak with the caller. The operation of the answering device may be interrupted by pressing a switch.

Abstract: A catalytic process and apparatus which is mechanically manipulated to increase the operating efficiency thereof. Provision is made for the application of an electric current during mechanical manipulation of the catalyst such as may be useful in certain instances.

Abstract: A catalytic process and apparatus has at least one electrode composed of catalytic material. An electric current is applied to the at least one electrode which is mechanically mmanipulated to increase the operating efficiency thereof during application of the electric current.

Abstract: An electronic calculator structure comprised of a flexible printed circuit on a thin flexible dielectric material base to which are fixed a low profile solid state computing and driving elements, a readout register and a low profile flexible diaphram type number and function key structure large enough for finger operation, a P-70 Rayovac class thin battery, and an ON-OFF switch, all coupled together in manner to form a thin flexible calculator structure suitable for many end product uses such as being housed between two layers of thin flexible vinyl to form one side of a thin flexible folder, the other side of which carries a pad or business form such as check book or bank deposit and withdrawal recording form to create thereby a thin, flexible, light, folder type calculator for comfortable pocket storage and ready access for on-the-spot use to solve mathematical problems.

Abstract: A spring holder which converts a box of tissues into a convenient, out-of-the-way storage and dispensing container particularly suitable for mounting in automobiles, the spring holder being characterized by a pair of spring legs adapted for anchoring at one end and at the other end having a support formation in cooperative relation to the spring legs and box for providing yieldable lift support to the tissue box against a reference surface, as well as resistance to lateral movement of the tissue box. In a first embodiment, each of the spring legs is of spring wire and has a spring loop distal from the anchor end and the support formation is comprised of an extension of each of the spring wire legs from the spring loop and having angular bends therein to engage a side, bottom and edge of an opening in the bottom of the tissue box.