...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7752721 | Swivel hook assembly A swivel hook assembly includes a hook holder, a hook, which has a hook shank rotatably connected to the hook holder and a hook head for hooking, a barrel sleeved onto the hook holder and movable relative to the hook holder between a first position to close the hook... | 07/13/2010 |
| 7360284 | Bungee cord system A bungee cord system, including, a bungee cord assembly, engaging locks, and universal anchors to safely secure, store, transport, and/or stack packages, containers and the like to surfaces. The bungee cord assembly includes an elasticized cord with first and second... | 04/22/2008 |
| 6948218 | Spring clip apparatus A spring clip device for use with leashes and dog runs to prevent or reduce the likelihood of injury to pets and their owners. The spring clip assembly includes a closable clip member, a swivel portion, a housing, a sleeve member and a resilient member. The closable... | 09/27/2005 |
| 6401312 | Hanging hook Hanging hook including a hook section, a latch member, a spring, a restricting column, a ring body and a C-shaped latch ring. The hook section has a stem body a lower end of which is formed with an annular stop section. One side of the stop section is cut... | 06/11/2002 |
| 5737809 | Lead attachment device An anchorage device for use in coupling a line/leash/lead to a requisite anchorage location, comprising a first structural component (2) providing a connection location (5) for coupling the device with a line/leash/lead, and a hook like formation (3) for ... | 04/14/1998 |
| 5156430 | Coupling device A coupling device comprises a shaft member having a coupling ring pivotably mounted thereon, a hook, a cylindrical casing and a compression spring. The coupling ring is pivotable into a horizontal position in which the hook, the casing and the spring are ... | 10/20/1992 |
| 5038262 | Device for suspending hangings or light fittings A device for suspending hangings on ornamental structures, especially lighting fittings, the hanging comprising an eye (2) into which a hook (4) formed on a rod (3) can be hooked and on which a bush (5) is longitudinally slidable. The bush is provided wit... | 08/06/1991 |
| 4523443 | Key keeper The disclosure relates to a key keeper comprising a key-retaining loop 3 with an opening 17 for the receipt of keys; said loop is connected to a loop holder 2 being slideably mounted within a housing 1. The loop is being closed if the holder is in its sli... | 06/18/1985 |
| 4454635 | Holder for releasably securing a ferrite core or the like to an electrical power line A holder for releasably securing a bifurcated core or the like to an electrical power line, the core having two substantially U-shaped portions which are abuttable to form a closed loop that encompasses the power line. An L-shaped boat has at least one le... | 06/19/1984 |
| 4419874 | Fastener device In order that it may be simple in use and of robust composition it has been constructed with a case (1) sliding round a coupling-piece (2) of which one end is connected to a small chain (6) and the other has a loop (3) which forms an opening (4) which in ... | 12/13/1983 |
| 4277866 | Jewelry clasp and method A small, strong jewelry clasp which requires fewer manufacturing steps to produce is disclosed. A generally flat, rectangular, elongate pin body is formed having a finger element extending from one end thereof. The other end of the pin body typically has ... | 07/14/1981 |
| 4199890 | Fishing line release device A fishing line release device is disclosed which can be constructed for use with both outrigger and flatline fishing gear. The release device comprises a release housing comprising an axially adjustable spool and a line securing hook rotatably mounted the... | 04/29/1980 |
| 4140205 | Safety release boat trapeze hook A safety release boat trapeze hook for use on sailboats with conventional trapeze equipment. The safety release hook includes a harness frame to which a hook assembly for attachment to a trapeze line ring is selectively latched by means of a latch release... | 02/20/1979 |
| 4091510 | Locking arrangement for jewelry and the like A locking arrangement for releasably securing two objects together such as the ends of a jewelry chain includes a set of activating members secured to one of the objects and resiliently urged in a normal position with a set of locking members being connec... | 05/30/1978 |
| 4037443 | Key retaining device The invention contemplates a key retainer with a key-retaining bail extending beyond one end of a case, for selective retention of one or more keys. The combination involves the bail formed as a hook-like part of slide structure within the case. Slide act... | 07/26/1977 |