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 |
| 6430260 | X-ray tube anode cooling device and systems incorporating same An anode target for use within an x-ray generating device including a target frame having an inner surface and an outer surface and a thermal energy transfer device. The thermal energy transfer device including a heat exchanger having an inner surface and... | 08/06/2002 |
| 6415946 | Pressure vessel head ring assembly A head ring protects the valving assembly, or regulator, flow adjuster, and content gauge, commonly attached to a pressure vessel, such as a conventional pressurized gas cylinder. The head ring includes a base securable to the dispensing end of the pressu... | 07/09/2002 |
| 6377659 | X-ray tubes and x-ray systems having a thermal gradient device A thermal energy transfer device for use with an x-ray generating device or x-ray system including an anode assembly having a target, a cathode assembly positioned at a distance from the anode assembly configured to emit electrons that strike the target p... | 04/23/2002 |
