9 Electric power distribution or control machines and apparatus; rotary converters; phase modifiers; batteries and dry cells; electric or magnetic meters and testers; electric wires and cables; electric buzzers; telecommunication machines and apparatus, namely, audio recorders, camcorders, video recorders, tape recorders; magnetic cores; resistance wires; electrodes, other than welding electrodes or medical electrodes; optical machines and apparatus, namely, fieldscopes and microscopes; photographic machines and apparatus, namely, photographic and electronic apparatus to expose digital images electronically processed from images of block copy onto unexposed photographic film or pre sensitized printing plate; cinematographic machines and apparatus; measuring or testing machines and instruments, namely, distance measuring apparatus, interferometers, laser distance meter, shape measuring instrument in the nature of contour gauges; ozonizers for calibration purposes; electrolysis apparatus for laboratory use; cash registers; coin counting or sorting machines; job recording devices, namely, time clocks being time recording devices; photo-copying machines; manual calculators; mathematical instruments, namely, abacuses, slide rules, calculators, measuring rulers, compasses for measuring, and protractors; time and date stamping machines; time clocks being time recording devices; punched card office machines; voting machines; automated billing machines for processing accounting information; postage stamp checking apparatus; coin-operated mechanisms for car parking gates; fire alarms; gas alarms; anti-theft warning apparatus, namely, electronic warning bells; railway signal apparatus, luminous or mechanical; vehicle breakdown warning triangles; road signs, luminous or mechanical; divers' apparatus, not for sports, namely, buoyancy bladders; circuit boards; flexible circuit boards; fire hose; solar batteries