TREA

David J. Livezey

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  • Kent, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Forced air heater
    • Patent number 4,223,659
    • Issue date Sep 23, 1980
    • Therm-Air Industries, Inc.
    • David J. Livezey
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Fireplace air heater
    • Patent number 4,220,131
    • Issue date Sep 2, 1980
    • Therm-Air Industries, Inc.
    • David J. Livezey
    • F24 - HEATING RANGES VENTILATING