ELECTRICAL CONTROL APPARATUS, ELECTRICAL MACHINES, AND ELECTRICAL SUPPLIES, CONSISTING OF; CONTROLLERS FOR DYNAMO-ELECTRIC MACHINES-TO WIT; STARTING, STOPPING, REVERSING, AND SPEED REGULATING APPARATUS FOR MOTORS, AND VOLTAGE AND CURRENT REGULATING APPARATUS FOR GENERATORS, AND LIKE CONTROL APPARATUS FOR ROTARY CONVERTERS; CURRENT BREAKERS; [ MAGNETIC BRAKES FOR VARIOUS TYPES OF MACHINES; ] [ LIFTING AND SEPARATING MAGNETS AND CONTROLS THEREFOR; ] ELECTRICAL PANELBOARDS AND MULTI-BREAKERS; SOLENOIDS, SAFETY SWITCHES, METER SERVICE AND ENTRANCE SWITCHES; FLOAT AND PRESSURE SWITCHES; INSULATING BASES AND SUPPORTS FOR SWITCHES AND THE LIKE; CONTROLLERS [ AND DRIVING UNITS ] FOR VALVES REQUIRING ROTATION OF AN ELEMENT THEREOF; SOLENOID-OPERATED VALVES; FUSE PANELS; TERMINAL LUGS; WIRING FIXTURES AND CONDUIT FITTINGS COMPRISING SWITCHES, SWITCH BOXES AND COVERS, ATTACHMENT PLUGS, TAPS, RECEPTACLES, [ LAMP SOCKETS, ] AND CORD CONNECTORS; [ ELEVATOR CONTROL APPARATUS, CONSISTING OF LIMIT SWITCHES, DOOR SWITCHES, TRANSFER SWITCHES, AND FLOOR SELECTOR SWITCHES; ] SPEED REGULATING AND OTHER CURRENT CONTROL RESISTORS; [ RHEOSTATS; ] RELAYS; CONTACTORS; SWITCH PANELS; CONTROL PANELS; PUSH BUTTON SWITCHES FOR MACHINE TOOL CONTROLLERS; MOTOR STARTERS; [ SPEED CONTROLLERS AND REGULATORS ESPECIALLY ADAPTED FOR MARINE SERVICE; ] [ RESISTANCE UNITS FOR ELECTRIC SPACE HEATERS; INDUSTRIAL TYPE ELECTRIC HEATERS; OVENS AND IMMERSION TYPE ELECTRIC WATER HEATERS; SURFACE UNITS AND OVEN UNITS FOR ELECTRIC RANGES; THEATER AND SPOTLIGHT DIMMERS; BATTERY CHARGERS; ] STARTERS AND SPEED REGULATORS FOR THE ELECTRIC MOTORS OF FIRE PUMPS, PRINTING PRESSES, PAPER MAKING MACHINES, OIL WELL DRILLERS AND PUMPS; CRANE AND HOIST CONTROLS; ELECTRICAL CONTROLS FOR DIESEL LOCOMOTIVES; CIRCUIT CONTROLLERS OF THE ELECTRONIC TYPE; [ ELECTRIC WELDING CONTROLLERS; AND CIRCUIT CONTROLLERS FOR ELECTRIC REFRIGERATORS ]