TREA

George W. Berg

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  • Nanaimo, B.C., CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Reversible hydraulic engine
    • Patent number 4,184,807
    • Issue date Jan 22, 1980
    • George W. Berg
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...