Telecommunication machines and apparatus; electronic machines, apparatus and their parts; power distribution or control machines and apparatus; rotary converters; phase modifiers; ear plugs not for medical purposes; electric welding apparatus, namely, welding torches; ozonisers; electrolysers; egg-candlers; cash registers; coin counting or sorting machines; electric sign boards for displaying target figures, current outputs or the like, namely, electronic scoreboards, electronic notice boards; photo-copying machines; manually operated computing apparatus, namely, computer trackballs, keyboards; drawing or drafting machines and apparatus, namely, computer hardware for use in computer-aided drafting, light pens; time and date stamping machines; time clocks; punched card office machines, namely, punch clocks; voting machines; billing machines, namely, automated computer printers for printing consumer bills; postage stamp checking apparatus, namely, postage meters; vending machines; coin-operated gates for car parking facilities; life saving apparatus and equipment, namely, fire extinguishers; fire hydrants, fire hose nozzles sprinkler systems for fire protection, fire alarms; gas alarms; anti-theft warning apparatus, namely, theft and burglar alarms not including anti-theft alarms for vehicles; protective helmets; railway signals; vehicle breakdown warning triangles; luminous or mechanical road signs; diving machines and apparatus, namely, diving helmets, weight belts for diving, regulators for use in scuba diving; arcade video game machines; electric door openers; vehicle drive training simulators; sports training simulators; laboratory apparatus and instruments, namely, incubators, laboratory glassware, ventilation hoods, calipers, furnaces for laboratory experiments; photographic machines and apparatus, namely, photocopiers, photographic projectors, photo telegraphy apparatus, photographic cameras, photographic exposure meters; cinematographic machines and apparatus; optical apparatus and instruments, namely, optical cables, optical filters, optical scanners, optical readers, scientific optical mirrors; measuring or testing machines and instruments, namely, laser measuring systems, length measuring gauges, measuring spoons and cups; batteries and cells, namely, electrical cells, photovoltaic cells, fuel cells, solar cells, wet cells, dry cells; electric or magnetic meters and testers, namely, voltage meters; electric wires and cables; electric flat irons; electric hair-curlers; electric buzzers; magnetic cores; resistance wires; electrodes; fire boats; motor fire engines; cigar lighters for automobiles; gloves for protection against accidents; dust masks; gas masks; welding masks; fireproof garments; eyeglasses; phonograph records; metronomes; electronic circuits and CD-ROMs recorded automatic performance programs for electronic musical instruments; slide-rules; exposed cinematographic films; exposed slide films; slide film mounts; pre-recorded video discs and video tapes, downloadable electronic publications