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Valentine J. Zimmerman

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  • Galesville, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Powered downdraft gasifier
    • Patent number 4,463,687
    • Issue date Aug 7, 1984
    • E.K. Industries, Inc.
    • Valentine Zimmerman
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Wood burning stove
    • Patent number 4,343,289
    • Issue date Aug 10, 1982
    • Valentine J. Zimmerman
    • F24 - HEATING RANGES VENTILATING