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James A. O'Brien, II

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  • Deerfield, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable capacity pump/motor
    • Patent number 7,179,070
    • Issue date Feb 20, 2007
    • Hybra-Drive Systems, LLC
    • James A. O'Brien, II
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...