TREA

William C. Topham

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  • Midland, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Snowmaking apparatus and methods
    • Patent number 5,167,367
    • Issue date Dec 1, 1992
    • Snow Machines Incorporated
    • James B. VanderKelen
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...