IC 009. US 021 023 026 036 038. G & S: Measuring instruments and apparatus, particularly for measuring pressure, absolute pressure, differential pressure, temperature, density, ph-value, quantity, particularly flow volume, humidity, force, acceleration, distance, angle, velocity, charging level, namely, metal measuring orifice plates, manometers, mano-vacuum meters, barometers, altimeters, thermometers not for medical purposes, thermo-hydrometers, hydrometers, pressure sensors, flow meters, pressure gauges, measuring converters; remote indicators, namely, pressure reference digital indicators and temperature reference digital indicators; control and regulating apparatus, namely, electronic control and feedback control devices for fluids and gas; flow monitors for fluids and gases; electric relays, electric contactors, switches, namely, pressure switches and temperature switches; position controllers, namely, position controllers used to determine the position of valves; pressure controllers for controlling the pressure of fluids and gaseous substances in industrial processes; electrotechnical and fluidic equipment and apparatus, namely, feed apparatus, namely, control valves for regulating the flow of gases and liquids, registering apparatus, namely, strip chart recorders; calibrators and calibration devices, in particular pressure compensators; testing bays comprised of computer component testing and calibrating equipment; electric and electronic control devices, namely, electric and electronic control devices for use in measuring and controlling pressure and temperature

IC 042. US 100 101. G & S: Calibration and functional testing of measuring instruments