Scientific, nautical, surveying, weighing, measuring, signalling, checking (supervision) apparatus and instruments; gauges; pressure gauges; temperature indicators; manometers; jigs [measuring instruments]; material testing instruments and machines; life-saving apparatus and equipment; airbags for safety purposes for fall protection; floating life-saving apparatus and instruments; life-saving rafts; life preservers; apparatus for conducting, supplying, converting, accumulating, regulating or ...

AIR FILTERING AND PRESSURIZING INSTALLATIONS