4. Earth working
  5. Automatic power control
  6. Draft responsive

Francois Degraeve

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Method and apparatus for controlling the frequency of vibration

Electricity: motive power systems – Reciprocating or oscillating motor – Energizing winding circuit control
Patent

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System for controlling the direction and speed of a steerable lo

Electricity: motive power systems – Positional servo systems – Vehicular guidance systems with single axis control
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Tractor with hydraulic control system for preventing skidding

Earth working – Automatic power control – Draft responsive
Patent

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Profile ID: LFUS-PAI-P-314820

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