TREA

Mark S. Heydendahl

Follow

Person

  • Anaheim, CA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Operating circuits for locking device
    • Patent number 5,444,440
    • Issue date Aug 22, 1995
    • Mark S. Heydendahl
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Locking device for doors
    • Patent number 5,152,560
    • Issue date Oct 6, 1992
    • Mark S. Heydendahl
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES