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 |
| 6302127 | Portable structure A structure includes a frame formed of a flexible endless band in an arched figure eight. The band includes roof sections extending from the cross-over point, wall sections extending from the roof sections and foot sections each extending between two of t... | 10/16/2001 |
