TREA

William M. Johnson

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  • Melton South, AU
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Patents Grantslast 30 patents

  • Information Patent Grant

    Two-piece earth engaging implement and method of forming the same
    • Patent number 4,781,254
    • Issue date Nov 1, 1988
    • Ralph McKay Limited
    • William M. Johnson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Adaptor for agricultural machine earth engaging implements
    • Patent number D292587
    • Issue date Nov 3, 1987
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Deep tillage sweep
    • Patent number 4,697,646
    • Issue date Oct 6, 1987
    • Ralph McKay Limited
    • William M. Johnson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Agricultural sweep
    • Patent number D288689
    • Issue date Mar 10, 1987
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Earth engaging implements
    • Patent number 4,638,868
    • Issue date Jan 27, 1987
    • Ralph McKay Limited
    • William M. Johnson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Agricultural implement
    • Patent number D286783
    • Issue date Nov 18, 1986
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Agricultural implement
    • Patent number D285691
    • Issue date Sep 16, 1986
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Agricultural implement
    • Patent number D285206
    • Issue date Aug 19, 1986
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Agricultural implement
    • Patent number D285205
    • Issue date Aug 19, 1986
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Agricultural sweep with planar intermediate section
    • Patent number 4,580,639
    • Issue date Apr 8, 1986
    • Ralph McKay Limited
    • William M. Johnson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Agricultural sweep
    • Patent number D277862
    • Issue date Mar 5, 1985
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Tool fastening
    • Patent number 4,342,166
    • Issue date Aug 3, 1982
    • Ralph McKay Limited
    • William M. Johnson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Agricultural discs
    • Patent number 4,305,272
    • Issue date Dec 15, 1981
    • Ralph McKay Limited
    • William M. Johnson
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Agricultural tine
    • Patent number D262028
    • Issue date Nov 24, 1981
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Adaptor for an agricultural tine
    • Patent number D260772
    • Issue date Sep 15, 1981
    • Ralph McKay Limited
    • William M. Johnson
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Tillage discs
    • Patent number 4,246,971
    • Issue date Jan 27, 1981
    • Ralph McKay Limited
    • William M. Johnson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING