Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 4062609 | Spring contact for high frequency electrical signals A spring contact element is soldered to the end section of a plate holder hub in a high frequency tuneable cavity. The spring contact extends outwardly transverse to the shaft's principle direction and terminates in a plurality of radially extending conta... | 12/13/1977 |
