...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 |
| 4792427 | Method for making light-transmitting slats for blind A method for making light, thin, thermoplastic slats for use in decorative window blinds of the Venetian or vertical rotatable slat types. Strips are prepared of flexible and resilient planar thermoplastic material of not more than 1/16 inch thickness wit... | 12/20/1988 |