Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7325623 | Rolling spike harrow The spike wheels of the harrow are arranged in gangs to rotate about a common axis during ground engagement. Each wheel has a plurality of spikes that project outwardly from a cylindrical hub having a pair of opposite ends. Projections at one end of the hub are mati... | 02/05/2008 |
| 5259460 | Device for working the ground A device for working the ground comprising a frame and a plurality of discs. Each disc is rotatably mounted on a shaft which is provided on the free end of a pivotable standing shaft. In order to prevent jamming of the discs by earth thrown up by adjacent... | 11/09/1993 |
| 4712492 | Implement position adjusting device An adjusting device permitting the operator of a planter to easily and accurately adjust the depth of planting by vertically adjusting the height of the planter frame through use of an adjustable spacer device in the support for the gauge wheels. The adju... | 12/15/1987 |
