TREA

Lawrence V. Drake

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  • Buffalo, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heating method and apparatus
    • Patent number 4,907,739
    • Issue date Mar 13, 1990
    • Gyp-Crete Corporation
    • Lawrence V. Drake
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Electric radiant floor heating system
    • Patent number 4,878,332
    • Issue date Nov 7, 1989
    • Infloor, Inc.
    • Lawrence V. Drake
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Manifold
    • Patent number 4,770,341
    • Issue date Sep 13, 1988
    • Infloor, Inc.
    • Lawrence V. Drake
    • F24 - HEATING RANGES VENTILATING