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Batteries, accumulators; battery chargers; safety switching apparatus for power network failures; installations for power supply for emergency light systems, alarm systems, computer systems, medical devices, in particular, central battery installations in the nature of electrical storage batteries, renewable battery system to provide backup power; group supply systems comprised of accumulators, control units, switches, connectors for electrical circuits; installations for uninterruptible power supply for emergency light systems, alarm systems, computer systems, medical devices, namely, emergency power systems comprised of renewable battery system to provide backup power, power supplies for lights, sirens and public address systems

Maintenance and repair of batteries and accumulators, safety switching devices for power network failures, power supply installations, in particular central battery installations, group supply systems, uninterruptible power supply installations