Did You Know...
...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 |
| D538839 | Camera-printer combination | 03/20/2007 |
| 6948216 | Window covering with improved anchor for operating cord A covering for an architectural opening includes a head rail, a bottom rail, and a blind material extending therebetween in addition to an operating element or lift cord extending from the head rail to the bottom rail and an improved anchoring system for securing th... | 09/27/2005 |
| 6745433 | Side load balance cord terminal clip Disclosed are apparatus for a block and tackle window balance including a terminal clip to be incorporated in single and double hung window assemblies. In one embodiment the terminal clip includes a first end portion defining an opening for passing a terminal end of... | 06/08/2004 |
| 6655517 | Clutch fork with externally removable shaft and indicator washer A clutch fork and clutch housing assembly for use with a motor vehicle clutch includes a clutch housing, a shaft, a fork, a first index mark, and a first washer. The shaft is mounted to the clutch housing and defines an axis of rotation. The fork has a sl... | 12/02/2003 |
| 5971054 | Safety cord pull apparatus A safety cord-pull apparatus has a top portion and a bottom portion which include raised waves to secure control cords from a blind. A razor blade molded into the cord-pull apparatus cuts the control cords in the event a child or small pet becomes entangl... | 10/26/1999 |
| 5908063 | Safety cord pull apparatus A safety cord-pull apparatus having a top portion and a bottom portion which include raised waves to secure control cords from a blind. A razor blade molded into the cord-pull apparatus cuts the control cords in the event a child or small pet becomes enta... | 06/01/1999 |
| 4749299 | Unitary compression member and wear indicator for a ball joint A resilient compression member for a ball joint which has a wear indicating mechanism formed integrally therewith is disclosed. The compression member preloads a ball unit of the joint within a socket-like housing. The compression member includes an indic... | 06/07/1988 |
