Measuring apparatus and instruments, namely, contact or contactless transducers, pneumatic comparators and air plug gauges, calorimeters and micro-calorimeter, spectrometers for measuring radiation, scanners, dosimeters, apparatus and instruments for the purposes of metering, recording and measuring tactile or non-contact dimensional measurements, namely, flowmeters, micrometers, dimension or length measuring gauges, optical metrology inspection systems comprised of a light source, one or mor...