TREA

William J. Graaskamp

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  • Guelph, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve control system for hitch motor
    • Patent number 4,907,493
    • Issue date Mar 13, 1990
    • Massey-Ferguson Services N.V.
    • Regis Bellanger
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Implement control system
    • Patent number 4,907,653
    • Issue date Mar 13, 1990
    • Massey-Ferguson Services N.V.
    • Regis Bellanger
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Tractor hitch control system
    • Patent number 4,817,499
    • Issue date Apr 4, 1989
    • Massey-Ferguson Services N.V.
    • Regis Bellanger
    • G05 - CONTROLLING REGULATING