TREA

Keith A. Chen

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  • Milwaukee, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic gas shutoff valve
    • Patent number 4,513,776
    • Issue date Apr 30, 1985
    • Wisconsin Gas Company
    • Keith A. Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...