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lifesaving apparatus and instruments; namely, liferafts, lifesaving inflatable boats, buoys, floatation jackets, belts, rings, logs; water fins; respirators, self contained oxygen/breathing apparatus; life nets, safety nets and belts; fire, smoke, heat, hazardous substances and hazardous environment alarms, extinguishers, detectors; computers, computer programs in the field of safety and security control of alarms, signals, timers, valves, switches, cameras, sound recorders, telephones and lights, printers, modems, monitors, discs, diskettes, tapes both blank and prerecorded for use in the field of safety and security and safety security education; apparatus for recording, signalling and registering time; namely, time controllers, switches, displays and alarms; electric timers; apparatus for recording, producing, reproducing and transmitting sound, pictures, images, magnetic and electric signals; namely, cameras, video cameras, video recorders; motion picture cameras and projectors; video terminals; tape and disc recorders, and playback machines, microphones, amplifiers, sound mixers, loudspeakers, record players; blank and prerecorded sound and video tapes, discs, cassettes, reels all for use in the field of safety security and safety security education; television and radio receivers, cameras, transmitters; automatic garage door openers; automatic switches; optical apparatus; namely, telescopes, binoculars, periscopes, lens, microscopes, lens filters, magnifying glasses, prisms, reflectors; magnifying lens for door peephole; photographic developing, printing and enlarging automatic apparatus; light exposure meters, range finders, photographic flash units; telephones and wireless apparatus; namely, transceiver, telephones, intercoms, switchboards, answering machines; electric and lighted signs and displays; measuring, weighing, signalling, and checking apparatus; namely, acidimeters for batteries, acid hydrometers, aerometers, alcoholmeters, altimeters, ammeters, anemometers, precision balances, barometers, calipers, commutators, current rectifiers and verifiers, densimeters, densitometers, dynamometers, light meters, frequency meters, galvanometers, hygrometers, manometers, polarimeters, pedometers, odometers, spirometers, telemeters, variometers, voltmeters; microwave leak detector, microwave testers, motion detectors, gas detectors, thermometers, electrically controlled valves and switches used to operate doors, lights, electrical appliances and to control heat and temperature of air and water; batteries, battery testers and alarms, transformers, switches, circuit brakes, starters, fuses, lightening arrestors, electric wire, cables, connectors, plugs; alarms for security and safety of buildings, property, equipment and for personal use; alarms and signals to detect location and movement, failure of essential system; alarms to warn of danger such as bath water level and temperature, electricity failure or surges; clothing for protection against hazardous materials, temperature paint, dust, flames, heat, water, chemicals, and for protection in hazardous activities; namely, boots, hoods, hats, helmets, masks; shoe protectors and covers, sleeves, aprons, gowns, gloves, shirts, jackets, vests, knee pads, goggles, respirators, air breathing apparatus; eyewear; namely, glasses, sunglasses, lens, frames, eyeglass covers; magnets, demagnetizers; fire escape ladders