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Batteries; battery parts, namely, vent caps, cathodes, anodes; battery chargers; accumulators; electric power supply; electric power storage, namely, electric storage batteries; apparatus, devices and instruments for electric power supply, namely, power supplies; apparatus, devices and instruments, namely, uninterruptible power supply; electric power devices, apparatus and instruments, namely, power supplies; electric power storage devices, apparatus and instruments, namely, electric storage batteries; electric power systems, namely, battery system to provide backup power; electric power storage systems, namely, power supplies; battery storage provided as one system, namely, electric storage batteries