9 ELECTRIC CELLS AND ELECTRIC BATTERIES, CASES ADAPTED FOR ELECTRIC CELLS AND FOR ELECTRIC BATTERIES, ELECTRIC BATTERY CHARGERS, APPARATUS FOR SUPPLYING ELECTRIC POWER, FOR CONTROLLING THE SUPPLY OF ELECTRICITY AND FOR SPEED REGULATING, COMBINED ELECTRIC BATTERIES AND ELECTRIC BATTERY CHARGING APPARATUS, BEING AUTOMATICALLY OPERATED APPARATUS FOR SUPPLYING POWER; ELECTRIC TRANSFORMERS, VOLTAGE REGULATORS, ELECTRIC CURRENT METERS, VOLT METERS, ALARMS AND INDICATORS, ALL FOR USE IN INDICATING VARIATIONS IN THE CONDITIONS OF ELECTRIC CIRCUITS FROM PRE-SET CONDITIONS; RECTIFYING APPARATUS, INVERTERS, ILLUMINATED SIGNS, AND PARTS FOR ALL THE AFORESAID GOODS