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| Number | Title | Issue Date |
| 6991042 | Working machine lifting device of tractor A working machine lifting device of a tractor, comprising externally installed hydraulic lift cylinders disposed on the right and left sides of a transmission casing, lift arms rotated by the operation of the cylinders, and lower links vertically rotated by the rota... | 01/31/2006 |
| 6484828 | Mobile agricultural machine A mobile cultural machine including right and left traction members, a transmission, and a main speed change device operable to transmit, at any speed ratio, a driving force from an engine through the transmission to the traction members so that they are ... | 11/26/2002 |
| 6408960 | Mobile agricultural machine A mobile cultural machine including right and left traction members, a transmission, and a main speed change device operable to transmit, at any speed ratio, a driving force from an engine through the transmission to the traction members so that they are ... | 06/25/2002 |
| 5699656 | Agricultural combine A tracked agricultural combine vehicle for harvesting, hulling and sorting grain includes a grain working section driven via a tension roller clutch controlled power transmission belt and further including integrated control means for left and right side ... | 12/23/1997 |
| 5655467 | Transplanter A seedling planter mounted on a trailer is provided with means to sense the side walls of ridges of earth and a means to position the planter over ridges of earth in response to the ridge side wall sensing means by transporting the planter sideways from t... | 08/12/1997 |
| 5584167 | Working vehicle A tracked agricultural combine vehicle for harvesting, hulling and sorting grain includes integrated control means for left and right side propulsion track assemblies wherein individual track steering commands in the form of differential track speed contr... | 12/17/1996 |
