TREA

Fred de Weaver III

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  • Dayton, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Propulsion system
    • Patent number 4,479,396
    • Issue date Oct 30, 1984
    • Fred deWeaver
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Propulsion system
    • Patent number 4,409,856
    • Issue date Oct 18, 1983
    • Fred de Weaver
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...