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Donald William Herd

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  • Glen Burnie, MD, US
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Patents Applicationslast 30 patents

  • Information Patent Application

    INFLATABLE POOL COVER
    • Publication number 20150284970
    • Publication date Oct 8, 2015
    • Donald William Herd
    • E04 - BUILDING
  • Information Patent Application

    Inflatable pool cover
    • Publication number 20090158517
    • Publication date Jun 25, 2009
    • Donald William Herd
    • E04 - BUILDING
  • Information Patent Application

    Worry-free inflatable cover
    • Publication number 20070271692
    • Publication date Nov 29, 2007
    • Donald William Herd
    • E04 - BUILDING