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Donald Alan Graham SR.

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  • Northglenn, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ladder support
    • Patent number 9,725,954
    • Issue date Aug 8, 2017
    • Donald Alan Graham
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Ladder support
    • Patent number 9,366,083
    • Issue date Jun 14, 2016
    • Donald Alan Graham
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

Patents Applicationslast 30 patents

  • Information Patent Application

    Ladder Support
    • Publication number 20170298693
    • Publication date Oct 19, 2017
    • Donald Alan Graham
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Application

    Ladder Support
    • Publication number 20160201392
    • Publication date Jul 14, 2016
    • Donald Alan Graham
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Application

    Ladder Support
    • Publication number 20150047924
    • Publication date Feb 19, 2015
    • Donald Alan Graham
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS