adding machines, calculators, stereo amplifiers, telephone answering machines, audio mixer, digital audio tape players, audio tape recorders, blank digital audio tapes, automatic telephone dialers, batteries, battery chargers, safety equipment, namely, beacon lights, computer interface boards, circuit breakers, burglar alarms, coaxial cables, computer cables, electrical cables, fiber chips, electrical circuit board, printed circuit board, electrical circuit, printed circuits, magnetic coded card reader, magnetic coils, compact disc music players, computer buffers, computer disk drivers, blank floppy computer disks, blank hard computer disks, computer hardware, computer keyboards, computer memories, computer monitors, computer mouse, computer operating programs, computer operating system, computer peripherals, computer printers, computer software for use in data base management, computer terminals, computer utility programs, electrical conductors, acoustic, electricity, fiber optic light and image conduits, electrical connectors, electric controllers, electric converters, dust covers for computers, covers for electric outlets, electric hair curlers, blank magnetic data carriers, data processors, pre-recorded and blank digital audio tape, digital audio tape player, electric light dimmers, light emitting diode displays, blank recordable optical, audio, compact, and video disks, electric luminescent displays panels, electric switch plate, emergency warning lights, electric encryption units, insulated electrical connectors, integrated circuits, laser scanners, laser scanners for industrial inspection, laser for measuring purposes, lasers not for medical use, electric light switches, loudspeaker cabinets, loudspeaker, micro-processors, microcomputers, microphone, microscopes, minicomputers, modems, video monitors, motion sensitive electric switches, mouse pads, multi-plexers, electric door openers, oscilloscopes, radio pagers, photocopying machines, ohmmeters, plotters, electric plugs, polygraph machines, electrical power supplies, daisy wheel printers, dot matrix printers, and impact printers, satellite processors, projection screens, movie projectors, photographic projectors, and slide projectors, radio telephones, radios, radios for vehicles, radios incorporating clocks, stereo receivers, musical sound, and musical video recordings, cash registers, rheostats, robots for laboratory and personal use, optical scanners, semiconductor devices, semiconductor, signal processors, electric signs, luminous signs, neon signs, solenoid valves, stereo tuners, super computers, super-mini-computers, electric switches, electric light switches, electronic motion sensitive switches, electronic touch sensitive switches, video tape recorders, telephone apparatus, namely intercoms, cellular telephone, television sets, transceiver, electrical transformers, voltage surge protectors, voltage surge suppressors, voltmeter, voting machines, electrical wires, mp3 player