21 ELECTRIC CIRCUIT CURRENT OVERLOAD RELEASE SWITCHES AND RELAYS, ELECTRIC CIRCUIT FUSES, MANUAL AND AUTOMATICALLY CONTROLLED ELECTRIC SWITCHES AND RELAYS, TELEPHONE AND TELEGRAPH TRANSMISSION AND RECEIVING EQUIPMENT, REMOTE CONTROL AND REMOTELY CONTROLLED ELECTRIC SWITCHES AND RELAYS, LIGHT SENSITIVE AND PHOTO-ELECTRIC SWITCHES, SWITCH BOXES, PLUGS, AND ELECTRIC WIRES, CONDUCTORS AND CONDUITS AND ADDITIONAL RELAYS FOR VEHICLES