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 |
| 4335697 | Internal combustion engine dual fuel system An internal combustion engine dual fuel system for controllably running the internal combustion engine on a liquid fuel, such as gasoline, in the usual manner or, at will, on liquified petroleum (LP) gaseous fuel. The conventional liquid fuel system of th... | 06/22/1982 |
