TREA

John F. Lawless

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  • Rydal, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Artificial snow making method
    • Patent number 3,969,908
    • Issue date Jul 20, 1976
    • John F. Lawless
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...