73325545
Aug 27, 1981
Apr 5, 1983
Components and Parts for Alarm Systems for the Detection of Fire, Burglary and Robbery, Visible and Audible and Combinations of Both-Namely, Intrusion Controls, Fire Controls, Digital Dialers and Multiplexors
Electrical and Scientific ApparatusRepairing Electrically Operated Protective Systems, Visible and Audible, and Combinations of Both, for Detecting Fire, Burglary, and Robbery
Building Construction and RepairInspecting and Monitoring Electrically Operated Protective Systems, Visible and Audible, and Combinations of Both, for Detecting Fire, Burglary, and Robbery
Computer and Scientific