Harmonics suppression equipment; static transfer switches; uninterruptible power supply systems; voltage dip compensators; electric power supply apparatus; electric power supplies; power conditioners; electric inverters for solar electric power; electric inverters; electric converters; electric controllers for networks; electric controllers for transporters; electric controllers for machine tools; electric controllers for measuring apparatus; power distribution or control machines and apparat...

Repair and maintenance of building equipment; Providing information relating to repair and maintenance of building equipment, including such information provided via telecommunication lines; Installation of AC motors, alternators, and DC motors including stepping motors and servo motors; Installation of AC electric generators, alternators; Installation of DC electric generators; Installation of power conditioners for solar electric power system; Installation of power conditioners; Installatio...

Electrical controllers for electric motors; electrical active filters for power supplies; electrical power supplies, and uninterruptible electrical power supplies; electrical Inverters; electrical inverters for solar electric power; electrical converters; electrical rotary converters; electric phase modifiers; telecommunication machines and apparatus, namely, modems, routers, telephones, radios, and televisions; electrical controllers for networks; electrical controllers for transporters; ele...