Manual and computer controlled coordinate measuring machines, computer hardware and computer software for operating coordinate measuring machines, [ probes for coordinate measuring machines, namely, electronic, contact and non-contact probes, electronic measuring machines, namely, linear measurement devices and electronic probes therefor, and height gauges, optical measuring machines, namely, optical comparators and optical gauges, electronic display gauges, instrument dial indicators, indicator holders and accessories in the nature of stands and bases, micrometers, micrometer sets composed of multiple micrometers of different sizes and component parts thereof, micrometer stands, and bevel protractors ]