[ rotary converters, phase modifiers, ozone generators, electric cells, arc welding apparatuses, and ] electric arc cutting machine; measuring apparatus and devices, namely, measuring devices with gradations in standard measuring units, namely, thermometers, gas meters, temperature meters, water meters, balances and scales, tape measures, planimeters, graduated rulers, and dynamometers; measuring devices with gradations in derived measuring units, namely, pressure meters, level gauges, acoustic meters, tachometers, accelerometers, refractometers, luminoflux meters, photometers, altimeters, hygrometers, luminosity meters, vibration gauges, sound level meters, speed meters, calorimeters, viscometers, concentration meters, gravimeters,densimeters, dynamometers, flowmeters, magnetic encoders, and frequency meters, [ precision measuring apparatuses and devices, namely, angle gauges, angle dividing devices, spherometers, clinometers, interferometers, square angle testing apparatuses and devices, length gauges, screw thread measuring apparatuses and devices, gauge comparators, surface roughness testers, and ] flatness testing apparatuses and devices for machining, automatic control apparatuses and devices, namely, automatic pressure controllers for controlling gas pressure, fluid flow automatic control apparatuses and devices, fluid composition automatic control apparatuses and devices, liquid level controllers, temperature auto controllers and devices, [ automatic combustion control apparatuses and devices, automatic gas vacuum controllers, calorie auto controllers and devices, and ] program controlling apparatuses and devices, [ and material testing apparatuses, namely, metal compression testing apparatuses, metal hardness apparatuses, metal strength testing apparatuses, rubber testing apparatuses, concrete testing apparatuses, cement testing apparatuses, textile testing apparatuses, plastic testing apparatuses, and lumber testing apparatuses, surveying devices, namely, alidades, clinometers, tripods surveying, magnetic compasses, magnetic needles, gyro compasses, gyromagnetic compasses, ] and leveling devices for surveying, [ measuring rods, measuring chains, staves for surveying devices, and sextant; astonomical measuring devices, namely, astronomical spectrographs, ] electrical distribution and control devices and apparatuses, namely, switches, relays, circuit breakers, controllers, rectifiers, connectors, disconnecting switches, capacitors, resistors, local switches, distribution boxes, switchboards, fuses, lightening arresters, transformers, induction voltage regulators, reactors, electric convertors, electric contacts, electrical inverters, and electric switches; electrical and magnetic measuring devices, namely, phase meters, oscillographs, electrical circuit testers, [ measurers for antenna reception range, electromagnetic field detectors, leakage detectors, ] frequency meters, [ vacuum tube testing apparatus, ] watt hour meters, voltmeters, radio wave meters, ammeters, oscillators, and capacitance measuring devices; electrical communication devices and apparatuses, namely, [ telephone apparatuses, namely, interphones, ] automatic switch boards, manual switch board, telephone sets; wired communication apparatuses, namely, [ teletypewriters, automatic telegraph apparatus, manual telegraph apparatus, telegraph switching apparatus, facsimile machines, ] intercommunication apparatuses, namely, [ intercoms, ] carrier apparatuses, namely, voice frequency transmission devices, [ and carrier frequency repeaters; broadcasting apparatuses, namely, television receiving sets, television transmitting and receiving sets, radio receiving sets, radio transmitting and receiving sets, ] wireless communication apparatus, namely, portable communication apparatus, [ aeronautical communication apparatus, fixed multi-channel communication apparatus, fixed single channel communication apparatus,and marine communication apparatus, applied radio apparatuses, namely, beacons, electronic direction finders, radar, and loran, voice frequency apparatuses, namely, jukeboxes, tape recorders, electric phonographs, and record players, ] video frequency apparatuses, namely, video cameras, [ video disc players, video tape recorders; ] and parts and accessories of electrical apparatuses and devices, namely, antenna, [ cabinets for electronic equipment, coils, magnetic tape erasers, magnetic tape cleaners, magnetic head erasers, magnetic head cleaners, speakers, connectors, capacitors, fuses for communication apparatus, resistors, blank tapes for tape recorders, ] switches, pickups, [ blank video tapes, phonomotors, ] transformers, [ microphones, and unrecorded phonographic records, namely, record blanks; applied electronic apparatuses and devices, namely, geiger counters, cyclotrons, industrial use betatrons, magnetic object detectors, sealed cases for magnetic disc use, seismic wave surveyors, hydrophones, applied ultra-sonic echo sounders, applied ultra-sonic flaw detectors, ultra-sonic echo measuring devices, ] applied electronic electro static process copying machines, automatic door control devices, electronic computers, namely, central processor units and peripheral equipment, namely, electronic circuits, prerecorded magnetic disks and magnetic tapes having motor control programs, electronic microscopes, electronic desk-top computers, [ word processors, ] recorded computer operating programs, data processors, remote controllers for industrial machines, interfaces for computers, and numerical control units, [ electron tubes, namely, X-ray tubes, photo tubes, vacuum tubes, rectifiers tubes, braun tubes, ] computer monitors; [ and discharge tubes; ] semiconductor elements, namely, [ thermistors, diodes, ] transistors; and electronic circuits, namely, integrated circuits, and large scale integrated circuits