ELECTRIC LIGHTING AND WIRING FIXTURES AND PARTS THEREOF-NAMELY, LAMP HOLDERS, RECEPTACLES AND SOCKETS FOR INCANDESCENT, GAS FILLED AND FLUORESCENT LAMPS; PORCELAIN LIGHTING FIXTURES AND PART THEREOF; SOCKET SHELLS, BASES, CAPS AND PARTS; SOCKETS WITH SWITCHES; SURFACE, FLUSH AND CORD OUTLET RECEPTACLES IN TWO THREE AND FOUR WIRE TYPES WITH AND WITHOUT LOCKING FEATURES; ATTACHMENT PLUGS AND CAPS; WATERTIGHT AND WEATHERPROOF RECEPTACLES AND CONNECTORS; SWITCHES OF THE FLUSH, SURFACE, PENDANT, LOCK, CANOPY, DOOR-OPERATED AND SOCKET TYPES WITH TUMBLER, PUSH BUTTON, PUSH-THROUGH, ROCKER, ROTARY, MERCURY AND CHAIN-PULL ACTIONS; PULL CHAIN AND PULL CHAIN ASSEMBLIES; PENDANTS, CHAIN INSULATORS, BALLS AND CONNECTORS; PULL CORD AND PULL CORD ASSEMBLIES AND CORD CONNECTORS; ROSETTES; CLEATS; SOCKET ADAPTERS:ADAPTER FITTINGS; SHADE ADAPTERS AND SHADE HOLDERS; SINGLE AND MULTIPLE, UNITARY AND SECTIONAL FLUSH WALL PLATES IN METAL AND PLASTIC; INTERCHANGEABLE WIRING DEVICES-NAMELY, SWITCHES, POWER OUTLETS, PILOT AND NIGHT LIGHTS, PUSH BUTTONS AND CORD OUTLETS FOR FLUSH WIRING WHERE SEVERAL DEVICES ARE RECEIVED IN A SINGLE GANG WALL BOX; SUPPORTING STRAPS OR BRIDGES FOR INTERCHANGEABLE OR OTHER STYLES OF WIRING DEVICES FOR MOUNTING THE SAME IN WALL BOXES, MACHINE FRAMES AND PANELS; SWITCH OUTLET AND JUNCTION BOXES, BOX COVERS; BOX-RINGS; BOX COVER SWITCHES; METAL AND PORCELAIN SHADE RINGS; REFLECTORS AND SHADES; PUSH BUTTONS; SWITCH KEYS; RADIO OUTLETS, CAPS AND BOX DIVIDERS; LAMPS; NAME PLATES FOR SWITCHES AND PUSH BUTTONS; BLANK AND KNOCKOUT INSERTS; SURFACE WIRING DEVICES COMBINING THE FEATURES OF WALL BOX WITH SWITCH, OUTLET, LAMP RECEPTACLE AND ROSETTE FOR METALLIC AND NON-METALLIC CABLES FOR WIRING WITH EXPOSED CONDUCTORS IN BASEMENTS, BARNS, GARAGES AND SIMILAR BUILDINGS; FAN HANGER OUTLETS COMBINING FAN SUPPORT AND POWER OUTLET; CLOCK HANGER OUTLETS COMBINING CLOCK HANGER AND POWER OUTLETS; FLUORESCENT LAMP STARTERS AND STARTER SOCKETS; VITREOUS AND CERAMIC LAMP SHADES; READY WIRED SOCKET STREAMERS; PORCELAIN PRIMARY FUSE BLOCKS AND CUT-OUTS; GLASSWARE FOR PORCELAIN FIXTURES; CONDUIT HANGERS; INSULATING BUSHINGS FOR METAL SOCKET CAPS AND FLUSH PLATES; PILOT AND NIGHT LIGHTS; CONDUCTOR CORD CONNECTORS; AND PARTS THEREOF