TREA

Ellsworth, Chow & Murphy, Inc.

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  • Palo Alto, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air regulating device
    • Patent number 4,452,391
    • Issue date Jun 5, 1984
    • Ellsworth, Chow & Murphy, Inc.
    • Vincent Y. S. Chow
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Protective system
    • Patent number 4,290,056
    • Issue date Sep 15, 1981
    • Ellsworth, Chow & Murphy, Inc.
    • Vincent Y. S. Chow
    • G08 - SIGNALLING