TREA

Circle Wind Corp.

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  • Truro, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Three-vaned drag-type wind turbine
    • Patent number 7,896,608
    • Issue date Mar 1, 2011
    • Circle Wind Corp.
    • Art Whitworth
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Modified Savonius rotor
    • Patent number 7,008,171
    • Issue date Mar 7, 2006
    • Circle Wind Corp.
    • Art Whitworth
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...