TREA

William J. Lawrence

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  • Kemah, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary filtration device
    • Patent number 4,897,192
    • Issue date Jan 30, 1990
    • William J. Lawrence
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Rotary filtration device
    • Patent number 4,818,401
    • Issue date Apr 4, 1989
    • William J. Lawrence
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL