TREA

Wallace G. Hanson

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  • Dodge Center, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for heating and cooling
    • Patent number 4,718,249
    • Issue date Jan 12, 1988
    • Wallace G. Hanson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Solar energy collector
    • Patent number 4,495,938
    • Issue date Jan 29, 1985
    • Wallace G. Hanson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Solar energy collector
    • Patent number 4,444,176
    • Issue date Apr 24, 1984
    • Wallace G. Hanson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Solar energy collector
    • Patent number 4,297,988
    • Issue date Nov 3, 1981
    • Wallace G. Hanson
    • F24 - HEATING RANGES VENTILATING