TREA

Henry C. Bierwirth

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  • Tulsa, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air conditioner with heat wheel
    • Patent number 5,826,641
    • Issue date Oct 27, 1998
    • Aaon, Inc.
    • Henry C. Bierwirth
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Blower fan housing assembly
    • Patent number 5,738,167
    • Issue date Apr 14, 1998
    • Aaon, Inc.
    • Norman H. Asbjornson
    • F24 - HEATING RANGES VENTILATING