TREA

Henry North

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  • Thunder Bay, Ontario, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for producing a force
    • Patent number 4,712,439
    • Issue date Dec 15, 1987
    • Henry North
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Propulsion device for a ship
    • Patent number 4,602,584
    • Issue date Jul 29, 1986
    • Henry North
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Milling apparatus
    • Patent number 4,511,092
    • Issue date Apr 16, 1985
    • Henry North
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Cavitators
    • Patent number 4,511,254
    • Issue date Apr 16, 1985
    • Henry North
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL