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 |
| 7185459 | Locking and unlocking device for vehicle doors, in particular swinging sliding doors for rail vehicles An engagement element is provided on the inside of the door leaf or of the door at a defined distance from the inside of the door. A spring-loaded locking hasp lies horizontally opposite the engagement element on the inside of the door frame. The locking hasp has a ... | 03/06/2007 |
| 5413402 | Sequenced tailgate lock A tailgate locking mechanism is provided for locking the tailgate in a closed position against the rear end of the body of a rear loading refuse collection vehicle. The locking mechanism includes at least two fluid operated piston and cylinder locking ass... | 05/09/1995 |
| 5092250 | Anti-pilferage device for container-carrying railroad flatcars An anti-pilferage device is attached to the car body of a railroad flatcar of the type for carrying containers. The device has a mounting plate attached to the car frame at a point adjacent the doors of a container loaded on the car. A barrier is tiltably... | 03/03/1992 |
| 4413568 | Method of automatically operating a semi-continuous passenger transport system using passive vehicles, and means for implementing same A method and apparatus for automatically operating a semi-continuous passenger transport system using non-motorized vehicles. Fault conditions corresponding to passengers or articles carried by passengers projecting beyond a surface limiting access to the... | 11/08/1983 |
