TOPMARK

Transformers, namely, electrical transformers, electrical current transformers and voltage transformers; starters for fluorescent lamps; rheostats; battery chargers; commutators; converters; electric converters; A/D converters; phase converters; voltage stabilizers; electrical current stabilizers; current rectifiers; buzzers in the nature of electric door bells; electric coils; electromagnetic coils; audio speakers; microphones; megaphones