73283874
Oct 30, 1980
COMPONENTS AND PARTS FOR ELECTRICALLY OPERATED PROTECTIVE SYSTEMS, VISIBLE ANDAUDIBLE AND COMBINATIONS OF BOTH, FOR DETECTIVE FIRE, BURGLARY, AND HOLDUP
Electrical and Scientific ApparatusINSPECTING AND REPAIRING ELECTRICALLY OPERATED PROTECTIVE SYSTEMS, VISIBLE ANDAUDIBLE, AND COMBINATIONS OF BOTH, FOR DETECTING FIRE, BURLARY, AND HOLDUP
Building Construction and RepairMONITORING ELECTRICALLY OPERATED PROTECTIVE SYSTEMS, VISIBLE AND AUDIBLE,AND COMBINATIONS OF BOTH, FOR DETECTING FIRE, BURGLARY, AND HOLDUP
Computer and Scientific