21 ELECTRICAL APPARATUS, MACHINES, AND SUPPLIES, CONSISTING OF-- CONTROLLERS FOR DYNAMO-ELECTRIC MACHINES-TO-WIT, STARTING, STOPPING AND SPEED REGULATING APPARATUS FOR MOTORS, AND VOLTAGE AND CURRENT REGULATING APPARTUS 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; ] SOLENOIDS, SAFETY SWITCHES, METER SERVICE AND ENTRANCE SWITCHES, FLOAT, PRESSURE AND OTHER SPECIAL SWITCHES; INSULATING BASES AND SUPPORTS FOR SWITCHES, [ AUTOMATIC VALVE CONTROL UNITS, ] SOLENOID-OPERATED VALVES, FUSE PANELS, TERMINAL LUGS; WIRING FIXTURES AND CONDUIT FITTINGS, CONSISTING OF SWITCHES, SWITCH BOXES AND COVERS, ATTACHMENT PLUGS, TAPS, RECEPTACLES, CAPS, [LAMP SOCKETS,] [ SHADE HOLDERS, WALL PLATES, 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, CONTAC TORS, SWITCH PANELS, PUSH BUTTON SWITCHES FOR MACHINE TOOL CONTROLLERS; MOTOR STARTERS, SPEED CONTROLLERS ADAPTED FOR MARINE SERVICE; [ RESISTANCE UNITS FOR SPACE HEATERS, INDUSTRIAL HEATERS, OVENS, AND IMMERSION WATER HEATERS; THEATRE AND SPOTLIGHT DIMMERS, BATTERY CHARGERS; ] STARTERS AND SPEED REGULATORS FOR FIRE PUMPS, PRINTING PRESSES, PAPER MAKING MACHINES, OIL WELL DRILLERS AND PUMPS; AND CRANE AND HOIST CONTROLS
Trademark: 71310798
