Douglas J. Werginz

Person

  • Big Bend, WI, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Modular shutter assembly

    • Patent number 4,967,511
    • Issue date Nov 6, 1990
    • AAA Sales & Engineering, Inc.
    • Douglas J. Werginz
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS