73606679
Jun 27, 1986
Aug 11, 1987
LOCKS, NAMELY, CYLINDER LOCKS, DEADBOLTS, DROPBOLTS, PADLOCKS, SWITCHLOCKS, CAMLOCKS, ROTARY LOCKS, EXTENSION LOCKS, T-HANDLE LOCKS, KEYS FOR THE FOREGOING LOCKS, LOCK GUARD PLATES, TUMBLER PIN KITS, AND CYLINDER LOCK CORES
Metal GoodsDESIGNING AND PROVIDING SECURITY SYSTEMS EMPLOYING CODED PLASTIC CARDS AND CONTROLLED KEY DISTRIBUTION
Computer and Scientific