Goods of common metal included in this class; pipes and tubes of metal, adapters for connecting pipes, of metal, stop valves for pipes of metal, valves for pipes of metal or plastic, pipe protectors and orifice plates, all the aforesaid goods being included in this class

Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus; measuring equipment and apparatus, in particular in relation to pressure, absolute pressure, differential pressure, temperature, quantity, in particular flow volume, humidity, force, acceleration, path, angle, speed, density or level; manometers, mano-vacuum meters, barometers, altimeters, thermometers (not for medical purposes), thermo-hydrometers, hydrometers, pressure sensors, flow meters, pressure gauges (measuring apparatus), measuring converters (measuring apparatus); electric measuring transducers with electronic output signals, in particular pressure measuring transducers, differential pressure transducers, level measuring transducers, remote indicators, control and regulating appartus, flow monitors (checking apparatus), electric relays, electric contactors, position controllers; electric and fluidic equipment and apparatus (included in this class), namely electric supply apparatus, electrical amplifiers, electrical circuitry, electric circuit elements and recording apparatus; calibrators and calibration devices, in particular pressure compensators; switches (electric), in particular pressure switches, limit switches, level switches, non-contact magnetic switches, optically, inductive and capacitive switches, electric switches designed as float switches, as motion detectors, as metal detectors; electric switching equipment for level control of liquids on the basis of the electrical conductivity of the liquid concerned; electric and electronic control apparatus for speed counting, speed control, stop-motion detecting, revolution-safety monitoring, level indication, limit monitoring, phase control, machine control and machine monitoring; electric and electronic control apparatus, holders