"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 5142610 | Liquid heating and dispensing appliance and valve construction A liquid heating appliance having a dispensing valve which is supported by a liquid reservoir and which includes an axially compressible conduit connected at its upper end to the reservoir and supporting at its lower end a nozzle, the nozzle supporting a ... | 08/25/1992 |
| 4809816 | Metal flake grease gun A metal flake grease having malleable metal flakes and an injector gun comprising an adjustable nozzle specially designed to allow metal flake grease to a grease fitting joint and into a worn area between inner and outer portions of the joint to become bo... | 03/07/1989 |
| 4461454 | Caulking tube valve A two piece valve accessory for common caulking tubes or cartridges insertable in caulking guns is disclosed. The valve permits resealing of the cartridge nozzle, snout or applicator tip without hardening or significant wastage of the material therein and... | 07/24/1984 |
| 4243161 | Continuous spray button A continuous spray button assembly of the type primarily used in conjunction with an aerosol dispenser and comprising a button contained within a tubular sleeve. The button and sleeve are rigidly press-fitted over the stem and turret of the valve, respect... | 01/06/1981 |
| 4145004 | Showerheads A showerhead of the type including an inlet end, an outlet end, and a bore defining a passage between the two. Two discs are disposed in the passage, in face-to-face engagement with each other and mounted for relative rotation about a central axis. A plur... | 03/20/1979 |
| 4079744 | Drain valve This invention relates to a drain valve and is particularly adapted for draining water or other liquid from the bowl of a filter for pneumatic systems. The valve includes a bendable tubular body of flexible material and there is a poppet for normally clos... | 03/21/1978 |