74194166
Aug 12, 1991
Jul 28, 1992
installation, maintenance and repair services for electronic security systems, fire detection systems, critical process systems, sprinkler maintenance systems, access control systems, closed circuit television systems, vaults and automatic teller machines
Building Construction and Repairmonitoring of security systems, fire detection systems, critical process systems, sprinkler maintenance systems, access control systems and closed circuit television systems
Computer and Scientific