TREA

Walter W. Claffey

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  • Barrington, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Propeller fan construction
    • Patent number 4,025,231
    • Issue date May 24, 1977
    • Revcor, Inc.
    • Joseph F. Kochevar
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...