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Patent applications and USPTO patent grants for Birkenbach; Eugen J..The latest application filed is for "self leveling towed implement".
Patent | Date |
---|---|
Self leveling towed implement Grant 7,063,167 - Staszak , et al. June 20, 2 | 2006-06-20 |
Soil-working implement having quick-change sweep design Grant 6,315,058 - Birkenbach , et al. November 13, 2 | 2001-11-13 |
Self-leveling agricultural implement Grant 4,712,622 - Birkenbach , et al. December 15, 1 | 1987-12-15 |
Rotary hoe wheel Grant 4,391,335 - Birkenbach July 5, 1 | 1983-07-05 |
Hydraulic angling mechanism for disc harrow gangs Grant 4,180,135 - Birkenbach , et al. December 25, 1 | 1979-12-25 |
Tool For Adjusting Disk Harrow Gangs Grant 3,618,674 - Woodworth , et al. November 9, 1 | 1971-11-09 |
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