Measuring or testing machines and instruments, namely, temperature indicators, water meters, planimeters, pressure gauges, level indicators, acoustic meters, tachometers, accelerometers, refractometers, luminoflux meters, photometers, hygrometers, illuminometers, noisemeters, speed indicators, calorimeters, flowmeters, length measuring gauges, automatic temperature control machines and instruments, namely climate control systems consisting of digital thermostats for cooling equipment, and a programmable logic controller (PLC) with input and output features for temperature and humidity, which works with a remote digital read out controller, distance measuring machines or apparatus, namely laser measuring systems, lidar light detection and ranging apparatus, and supersonic wave measuring systems, thermosensitive temperature indicator strips; electric or magnetic meters and testers; electric wires and cables; photographic machines and apparatus, namely, cameras, digital cameras, range finders for cameras, self-timers for cameras, camera lenses, photographic exposure meters; optical apparatus and instruments, namely, body-tubes for telescopes, namely, lens-barrels, lenses for telescopes, microscopes, magnifying glasses, metallurgical microscopes, biological microscopes, lenses for microscopes; electronic machines, apparatus and their parts, namely geiger counters, cyclotrons not for medical use, industrial X-ray machines and apparatus not for medical use, industrial betatrons not for medical use, seismic exploration machines and apparatus, hydrophone machines and apparatus, echo sounders, ultrasonic flaw detectors, ultrasonic sensors, electronic door closing systems, computers, electron microscopes; electron tubes, namely X-rays tubes not for medical use, photo-sensitive tubes, namely, phototubes, vacuum tubes; semi-conductor elements, namely thermistors, diodes, transistors; electronic circuits not including those recorded with computer programs, namely integrated circuits, large scale integrated circuits; computer programs for data acquisition, data control, and data analysis in the fields of manufacturing, research, development, design, and quality control