73537146
May 13, 1985
Mar 11, 1986
ELECTRICAL SIGNALLING AND COMMUNICATION SYSTEMS AND EQUIPMENT - NAMELY, FIRE ALARM APPARATUS; HEAT AND SMOKE DETECTORS; IONIZATION DETECTORS; PHOTOCELL DETECTORS; WATERFLOW SWITCHES; CONTROL PANELS; ELECTRICAL CODE AND SIGNALLING APPARATUS - NAMELY, BELLS, HORNS, BUZZERS, GONGS, CHIMES, SIRENS, HOWLERS, SPEAKERS, ANNUNCIATORS; [BATTERY ELIMINATORS;] TRANSFORMERS; RELAYS; SWITCHES, ELECTRICAL OUTLET BOXES; [ELECTRICAL PUSH BUTTONS; ELEVATOR ELECTRICAL SIGNALLING APPARATUS; ]ELECTRIC AND MAGNETIC DOOR CLOSERS, OPENERS, AND HOLDERS;[ MASTER INTERCOM UNITS; REMOTE CONTROL HAND SETS; AMPLIFIERS; HOSPITAL COMMUNICATION SYSTEMS-NAMELY, ELECTRICAL AUDIO/VISUAL NURSE CALL APPARATUS AND CONTROL UNITS,] POWER SUPPLIES, [EMERGENCY CALL SWITCHES, BEDSIDE SWITCHES,] ELECTRICAL SPEAKER, [CALLING AND SIGNALLING LAMP ANNUNCIATORS; ROTARY AND REVOLVING SIGNAL AND WARNING LAMPS; FLASHING LAMPS IN THE NATURE OF WARNING LIGHTS;]TIME LAPSE INDICATORS; AND PARTS THEREOF
Electrical and Scientific Apparatus