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Patent applications and USPTO patent grants for Forsgren; Lyle M..The latest application filed is for "torque splitting drive train mechanism for a dual counterrotating propeller marine drive system".
Patent | Date |
---|---|
Torque splitting drive train mechanism for a dual counterrotating propeller marine drive system Grant 5,009,621 - Bankstahl , et al. April 23, 1 | 1991-04-23 |
Lift and latch apparatus for an outboard motor Grant 4,872,859 - Griffiths , et al. October 10, 1 | 1989-10-10 |
Operation optimizing system for a marine drive unit Grant 4,872,857 - Newman , et al. October 10, 1 | 1989-10-10 |
Ground engaging drive track apparatus for snowmobiles and the like Grant 3,934,944 - Forsgren January 27, 1 | 1976-01-27 |
Suspension apparatus for ground engaging drive tracks Grant 3,913,694 - Forsgren October 21, 1 | 1975-10-21 |
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