Air analysis apparatus; Apparatus for recording, transmission, processing and reproduction of sound, images or data; Computer software for use in processing semiconductor wafers; Distance measuring apparatus; Electric cables and wires; Electric switch plates; Electric switches; Electricity distribution consoles; Electro-optical instruments for use in inspection and measurement of industrial components; Electronic apparatus for the remote control of industrial operations; Electronic indicator boards; Electronic instruments for use in remote inspection and measurement of industrial components using remote visual devices; Electronic notice boards; Geiger counters; Integrated circuits; Mechanical signs; Power switches; Remote control telemetering machines and apparatus; Voltage regulators