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Doug Hughes

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  • Owatonna, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Back drag plow
    • Patent number 7,543,401
    • Issue date Jun 9, 2009
    • Doug Hughes
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

  • Information Patent Application

    Back drag plow
    • Publication number 20090044433
    • Publication date Feb 19, 2009
    • Doug Hughes
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES