Circuit breakers; Circuit breakers and circuit closers; Commutators; Converters; Current transformers; Electric relays; Electric voltage transformers; Electrical relays and transformers; Electronic components in the nature of connectors; Electronic components, namely, piezoelectric switches; Electronic equipment, namely, transformers, baluns, and cables, all used in connection with computers, computer peripheral devices, televisions, audio-video equipment, closed-circuit TV equipment and tele...