9 Scientific apparatuses and instruments for laboratory research, namely, hygrometers; calibration devices for calibrating x-ray diagnostic apparatus, other than for medical use, namely, X-ray phantoms for quality assessment of X-ray and tomographic devices, X-ray dose measurement phantoms, temperature indicators, vacuum gauges, X-ray tubes not for medical purposes, industrial x-ray apparatuses and installations, X-ray dosimeters, scientific apparatus, namely, X-ray spectrometers; equipment and apparatuses for physics, namely, exposed X-ray films, X-ray photographs other than for medical purposes, acoustic alarms, signal bells, optical alarms, luminous signs, laboratory trays, micrometer screws; instruments for physics, namely, X-ray sensors and detectors, optical sensors and detectors, microphones, loudspeakers, headphones, and X-ray collimators; optical apparatuses, devices, and instruments, namely, light dimmers, lasers for industrial use, laser pointers, flashing safety lights, LED lamps, and contact lenses; electric data acquisition devices and electronic data acquisition devices, namely, video cameras, high-speed video cameras, audio- and video-receivers, and circuit boards; electric apparatus for data processing and electronic data processing equipment; electric door openers, Ethernet switches, switch boxes, electrical connection boxes, and foot-operated electric light switches; computer workstations comprising a computer case equipped with workstation hardware; external computer hard drives, CD burner, memory cards, and blank USB flash drives; electrical output units, namely, computer monitors; Blank optical data carriers for sound, image and data, except unexposed films; sensors, namely, X-ray sensors, optical sensors, audio sensors, motion sensors, pressure sensors, and temperature sensors; optical couplers; resistances, electric; condensers, namely, capacitors; electric reactors; magnetic coils; thermistors and posistors; radiation shields for electronic products; recorded software, namely, medical software for data and file processing and administration