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| Number | Title | Issue Date |
| 4779471 | Flexible drive arrangement for an implement A compact drive assembly including a flexible drive for transmitting power from a ground engaging wheel or wheels to a driven mechanism such as a seed meter on an implement. A set of cross helical spur gears are mounted in an enclosed case. The input gear... | 10/25/1988 |
| 4136744 | Ground driven power tillage device A power tillage device is provided having a passive rolling coulter as the prime mover for a power tillage blade which is carried in the lead of the coulter on a transfer case mounted as a radius arm on the counter shaft. The tillage blade rotates in the ... | 01/30/1979 |
| 4117891 | Ground drive for grain drills A drive roller for driving feeding and metering mechanisms for seed and fertilizer of a grain drill which utilizes a drive roller riding against a pair of castering frame support wheels that are independent of the press wheel assemblies for the grain dril... | 10/03/1978 |
