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 |
| 4145980 | Seeder for planting seeds at precise intervals An automatic seeder for planting tiny seeds at a consistent depth and at evenly spaced intervals, utilizing a vehicle carrying a novel seed dispersing means operationally disposed a short, preascertained distance above a seed bed. A ground sensing arrange... | 03/27/1979 |
