TREA

EDWARD S. CHANG

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  • Diamond Bar, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Overflow shutoff valve
    • Patent number 8,408,242
    • Issue date Apr 2, 2013
    • Edward S Chang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    OVERFLOW SHUTOFF VALVE
    • Publication number 20100193048
    • Publication date Aug 5, 2010
    • EDWARD S. CHANG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...