TREA

James F. Martin

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  • West Greenwich, RI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Check valve and backflow preventer
    • Patent number 5,947,152
    • Issue date Sep 7, 1999
    • Grinnell Corporation
    • James F. Martin
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Check valve and backflow preventer
    • Patent number 5,709,240
    • Issue date Jan 20, 1998
    • Grinnell Corporation
    • James F. Martin
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...