Rotary converters; electric meters; electric and magnetic meters and testers, all for use in testing wafers, integrated circuits, semiconductors, printed circuit boards, performance and efficiency of power plant equipment, gases, liquids and solids; electric wires and cables; spectacles, namely, eyeglasses and goggles; blank record discs; metronomes; electric control systems for machines; computers; computer central processing units; printed electronic circuits recorded with computer programs for use in database management, for use as a spreadsheet, and for use in word processing; computer programs for use in database management, for use as a spreadsheet, for use in word processing, for use in controlling, programming, reconfiguring, machines and material handling systems used in further manufacture of goods; computer peripherals; ozonisers, namely, ozonators; electrolysers, namely, electrolytic cells; vehicle drive training simulators; electric buzzers; vehicle breakdown warning triangles; luminous or mechanical road signs; fire alarms; gas alarms; gloves for protection against accidents; fire extinguishers; fire hose nozzles; fire boats; fire engines; protective helmets; fireproof garments; dust masks; gas masks; welding masks; magnetic cores; resistance wires; electrodes; exposed cinematographic film; exposed slide films; slide film mounts; cash registers; coin counting or sorting machines; electric sign boards for displaying target figures, current outputs or the like; photo-copying machines; time and date stamping machines; time clocks, namely, time recording devices; mechanical electrical calculating machines; voting machines; slide-rules; weight belts for scuba diving; air tanks for scuba diving; regulators for scuba diving