Distance measuring apparatus; testing equipment for measuring the temperature, pressure, position or form of workpieces in a machine tool; scientific apparatus, namely, spectrometers and parts and fittings therefor; navigation apparatus for boats; meteorological instruments; industrial automation controls; laboratory centriguges, furniture and glassware; flow meters; velocimeters for volumetric and velocity measurements of fluids; thermometers not for medical purposes; barometers; ammeters; v...