TREA

John R. Freeman

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  • Bellville, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve assembly for an oscillating pump
    • Patent number 4,824,337
    • Issue date Apr 25, 1989
    • The Gorman-Rupp Company
    • Darrell M. Lindner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...