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Ann-Marie Duwyn-Zylstra

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  • Niagara Falls, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Adjustable hat
    • Patent number 8,402,564
    • Issue date Mar 26, 2013
    • Ann-Marie Duwyn-Zylstra
    • A42 - HEADWEAR
  • Information Patent Grant

    Adjustable hat
    • Patent number 8,375,469
    • Issue date Feb 19, 2013
    • Ann-Marie Duwyn-Zylstra
    • A42 - HEADWEAR

Patents Applicationslast 30 patents

  • Information Patent Application

    ADJUSTABLE HAT
    • Publication number 20110099691
    • Publication date May 5, 2011
    • Ann-Marie Duwyn-Zylstra
    • A42 - HEADWEAR
  • Information Patent Application

    ADJUSTABLE HAT
    • Publication number 20100043121
    • Publication date Feb 25, 2010
    • Ann-Marie Duwyn-Zylstra
    • A42 - HEADWEAR