9 electrical and scientific apparatus; electronic and scientific apparatus, namely, diodes, light emitting diodes, electroluminescence device, transistors, photosistors, selenium rectifiers, resistors, fuses, voltage regulators, electronic welders, electroplating apparatus for forming super hard coatings of surface of a molding die, electric apparatus for removing molten solder from a soldered joint, ultrasonic abrasive apparatus, switches, replays and photorelays, electric cigar lighters, photographic strobe lights, electricdisplay, operator panel and other components for use in vehicle, office equipment and industrial equipment, light meters for measuring and fixing a shutter speed or diaphram of cameras, liquid crystal displays for motor vehicles and electronic equipment, electronic photoreceptors, noise suppressors, electrophotographic erasers, electronic power supplies for microcomputer equipment, office automation equipment, communication equipment and numerically controlled equipment, railway signals, image scanners, liquid level meters