TREA

Brett W. Allen

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  • Douglas, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cryopump with gate valve control
    • Patent number 6,327,863
    • Issue date Dec 11, 2001
    • Helix Technology Corporation
    • Stephen J. Yamartino
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...