Measuring apparatus, namely, scales; measuring instruments, namely, instruments for measuring length; radiation-measuring instruments; length measuring gauges; fuel gauges; pressure gauges; surveying machines and instruments; counters, namely, Geiger counters; air quality measurement apparatus, namely, particle counters; air analysis apparatus; thermometers, not for medical purposes; microscopes; refractometers; instruments containing eyepieces, namely, magnifying glasses that fit on the user...