TREA

Bethel; Patience K.

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  • Newport Beach, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pumping device
    • Patent number 4,715,240
    • Issue date Dec 29, 1987
    • Bethel; George F.
    • Richard R. Erich
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...