Semiconductors; semiconductor wafers; semiconductor devices; semiconductor elements; transistors; diodes; capacitors; electric resistors; rotary converters; phase modifiers being phase shifters for communications apparatus; electronic circuits; integrated circuits; large scale integrated circuits; electrical power distribution and control device and apparatus; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; electronic calculators and their parts; telecommunication machines, apparatus and their parts, namely, automatic switching apparatus, computer hardware for telecommunications, electric resistors; electronic machines, apparatus and their parts, namely, electrical semi-conductor power elements, electronic circuits, optical instruments in the nature of optical couplers, optical transmitters, optical receivers; laboratory apparatus, instruments and their parts, namely, physical and chemical laboratory apparatus and instruments in the nature of electric sensors, and scales being measurement apparatus in the nature of electric sensors, or scales, and laboratory chemical reactors; photographic apparatus and instruments, namely, photographic cameras, video cameras, photographic projectors, video projectors, multimedia projectors; optical apparatus and instruments, namely, optical condensers, optical semiconductor amplifiers, optical lamps, optical character recognition apparatus, optical inspection apparatus for industrial use; electric wires and cables; personal digital assistants; measuring or testing machines, instruments and their parts, namely, distance measuring apparatus, gasometers, instruments for measuring length, cement testing machines