Magazines

Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic garage door opener

    • Patent number 6,173,532
    • Issue date Jan 16, 2001
    • Armand S. Beausoleil
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Push-pull chain drive door operator system

    • Patent number 5,927,690
    • Issue date Jul 27, 1999
    • Overhead Door Corporation
    • James A. White
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door operation control apparatus

    • Patent number 4,393,342
    • Issue date Jul 12, 1983
    • Hitachi, Ltd.
    • Shigeru Matsuoka
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents