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 |
| 4766918 | Convertible, inflatable shelter apparatus A convertible, collapsible shelter apparatus for use on land and in a body of water comprises a buoyant vehicle in combination with a shelter assembly. The buoyant vehicle has (a) an inflatable frame, (b) a flexible member whose perimeter is sealingly att... | 08/30/1988 |
