9 WARNING AND SIGNAL LIGHTS AND CONTROLS THEREFOR, PRINTED CIRCUIT BOARDS, ELECTRONIC IMPULSE SENDERS, SIGNAL TRANSMITTERS, BATTERIES, ACCUMULATORS, POWER SUPPLIES, TRANFORMERS, ELECTRIC CABLES [ , AUDIO AND VIDEO RECORDERS, AUDIO AND VIDEO TAPE, RECORDING DISCS, AUTOMATIC VENDING MACHINES, CASH REGISTERS, CALCULATORS, DATA PROCESSORS, FIRE EXTINGUISHERS, AND PARTS THEREFOR ]