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...