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William G. Duff

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  • Lee's Summit, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Stitching head
    • Patent number 8,695,861
    • Issue date Apr 15, 2014
    • William Grady Duff
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Staple-forming apparatus
    • Patent number 7,159,746
    • Issue date Jan 9, 2007
    • William G. Duff
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...

Patents Applicationslast 30 patents

  • Information Patent Application

    STITCHING HEAD
    • Publication number 20120043365
    • Publication date Feb 23, 2012
    • William Grady Duff
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    STAPLE-FORMING APPARATUS
    • Publication number 20090308905
    • Publication date Dec 17, 2009
    • William G. Duff
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Staple-forming apparatus
    • Publication number 20070119898
    • Publication date May 31, 2007
    • William G. Duff
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Staple-forming apparatus
    • Publication number 20050067455
    • Publication date Mar 31, 2005
    • William G. Duff
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...