TREA

Gerald E. Williamson

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  • Macomb, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Weight transfer linkage arrangement
    • Patent number 4,858,698
    • Issue date Aug 22, 1989
    • Yetter Manufacturing Company
    • Gerald E. Williamson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Selective pivotal mounting arrangement for coulters
    • Patent number 4,759,411
    • Issue date Jul 26, 1988
    • Yetter Manufacturing Company
    • Gerald E. Williamson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Mounting arrangement for a coulter and knife
    • Patent number 4,745,978
    • Issue date May 24, 1988
    • Gerald E. Williamson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Liquid fertilizer applicator
    • Patent number 4,656,957
    • Issue date Apr 14, 1987
    • Yetter Manufacturing Company
    • Gerald E. Williamson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Agricultural tool clamp
    • Patent number 4,574,891
    • Issue date Mar 11, 1986
    • Yetter Manufacturing Company
    • Gerald E. Williamson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Hinge mechanism for folding tool bar assembly including hook engage...
    • Patent number 4,561,505
    • Issue date Dec 31, 1985
    • Yetter Manufacturing Company
    • Gerald E. Williamson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Row marker arm assembly
    • Patent number 4,449,590
    • Issue date May 22, 1984
    • Yetter Manufacturing Co.
    • Gerald E. Williamson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING