Batteries; Cut-out switches; Electric current switches; Electrical switches; Electrical switchgear, namely, voltage boosting devices for electric power lines; Electronic components in the nature of capacitors, connectors, filters; Electronic components, namely, piezoelectric switches; Electronic proximity sensors and switches; Frequency converters; Infrared sensors; Photoelectric sensors; Piezoelectric sensors; Relays, electric; Solenoid valves; Temperature switches