John Thorson

Person

  • Roseville, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Segmented door opener

    • Patent number 4,588,221
    • Issue date May 13, 1986
    • Ideal Security Hardware Corporation
    • Cardell E. Miller
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES