TREA

John E. Knecht

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wind driven heating system
    • Patent number 4,366,779
    • Issue date Jan 4, 1983
    • John E. Knecht
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...