Manufacture of measuring, checking, testing and navigational instruments and apparatus

This subclass includes the manufacture of search, detection, navigational, control, navigational and aeronautical systems and instruments, devices for automatic control or regulation of heating, air conditioning, cooling, temperature, humidity, pressure, vacuum, combustion, flow, level, viscosity, density, acidity, density, angle of rotation, continuous automatic measuring, recording, indicating, checking, testing devices and instruments, flow meters and meters, instruments for checking and measuring the characteristics of current and electrical signals, instruments and apparatus for laboratory analysis of the chemical or physical composition, density of solids, liquids, gases and other substances, instruments and parts thereof for other measurements and tests. This subclass also includes the manufacture of non-electrical measuring, checking, testing equipment (except simple mechanical tools). This subclass includes: - manufacture of measuring, checking and testing devices for aircraft engines - manufacture of equipment for checking the composition of vehicle exhaust gases - manufacture of meteorological instruments - manufacture of equipment for conducting physical analysis - manufacture of multi-recording devices - manufacture of radio radiation detection and testing devices - manufacture of surveying instruments - manufacture of liquid-glass and bimetallic thermometers (except medical thermometers) - manufacture of moisture stabilizers - manufacture of water limit checking devices - manufacture of flame regulators for fireworks - manufacture of spectrometers - manufacture of pneumatic measuring devices - manufacture of meters (water, gas, electricity, etc.) - manufacture of flow meters, level meters and other measuring and testing devices for liquids and gases - manufacture of tachometers - manufacture of mine detectors, pulse generators, magnetic detectors - search, detection, manufacture of navigational, seagoing and aeronautical equipment, including radio-hydro-acoustic beacons - manufacture of radar equipment - manufacture of global positioning and control systems (GPS) - manufacture of environmental and automatic control instruments - manufacture of measuring and recording equipment (e.g. black boxes) - manufacture of pedometers - manufacture of radar - manufacture of laboratory analytical instruments (e.g. for blood analysis) - manufacture of laboratory calipers, densitometers, manometers, balances and other laboratory measuring, checking, testing instruments, devices or machines. Excludes: - manufacture of telephone answering machines, see 26.30.0 - manufacture of radiation equipment, see 26.70.0 - manufacture of voice recording equipment, see 28.23.0 - manufacture of general purpose measuring instruments (non-laboratory types), pressure gauges and similar products, see 28.29.0 - manufacture of medical thermometers, see 32.50.0 - installation of industrial equipment for the control of production processes, see 33.20.0 - manufacture of simple mechanical measuring instruments (measuring tapes, calipers, etc.), see the corresponding instrument manufacturing classes