TREA

Wilhelm Groppel

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  • Melle, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wind generator
    • Patent number 6,270,308
    • Issue date Aug 7, 2001
    • Wilhelm Groppel
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents

  • Information Patent Application

    Wind turbine
    • Publication number 20020153728
    • Publication date Oct 24, 2002
    • Wilhelm Groppel
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...