Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7231295 | System and method for creating accurate topographical maps using low-drift DGPS The present invention is directed to a method for acquiring elevation data for an area. The method includes using a GPS receiver to map ground elevations while driving back and forth over an area and periodically recording position, elevation, and time. Then, at lea... | 06/12/2007 |
| 4096428 | Instrument supporting transformer unit A transformer unit for supporting, preferably, medical instruments, while furnishing them with particular levels of electric charge to accommodate their operations or recharging. a mounting member supports the transformer, and a series of modular like ins... | 06/20/1978 |
