ELECTRIC DOOR BELLS AND ELECTRIC DOOR CHIMES; AND SMOKE DETECTOR ALARMS
Electrical and Scientific ApparatusAND ELECTRIC LIGHTING FIXTURES AND ACCESSORIES, CEILING LIGHT FIXTURES, CHANDELIERS, FLUORESCENT LIGHT FIXTURES, WALL FIXTURES, WALL SCONCES, TRACK LIGHTING, RECESSED LIGHTING, UTILITY LIGHTING, SOLAR LIGHTING FIXTURES, LAMPS AND PARTS THEREFOR, LAMP SHADES, NIGHT LIGHTS, ELECTRIC LIGHT BULBS, FLUORESCENT LIGHT BULBS, FLUORESCENT LIGHT TUBES, EMERGENCY EXIT LIGHTING FIXTURES, OUTDOOR ELECTRIC LIGHTING FIXTURES, ELECTRIC FLOODLIGHTS, MOTION SENSORS AND MOTION DETECTORS FOR USE IN HOME SECURITY ALARM SYSTEMS, AND ELECTRONIC LIGHTING TIMERS
Environmental Control Apparatus