4. Motors: expansible chamber type
  5. Relatively movable working members with one having motive...
  6. Single valve unit controlling plural working chambers

Marlin W. Unruh

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GPS controlled guidance system for farm tractor/implement...

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Construction or agricultural-type vehicle
Reexamination Certificate

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GPS controlled guidance system for farm tractor/implement...

Earth working – Automatic power control
Reexamination Certificate

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Guidance control system for farm tractor/implement combination

Earth working – Automatic power control – Obstruction sensing type
Patent

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Rotary servo valve and guidance system apparatus for controlling

Motors: expansible chamber type – Relatively movable working members with one having motive... – Single valve unit controlling plural working chambers
Patent

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Profile ID: LFUS-PAI-P-561823

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