Comparators; Appliances for measuring the thickness of leather; Automatic altitude indicators; Coordinate measuring machines; Depth gauges; Derived-unit measuring machines and apparatus; Electro-optical instruments for use in inspection and measurement of industrial components; Feeler gauges; Industrial calibration sensors; Laboratory equipment and supplies, namely, calipers; Measuring instrumentation and apparatus, namely, digitizers; Optical inspection apparatus; Optical profilers; Plug gau...