Rotary or piston pumps, compressors, blowers, fire-extinguishing pumps; portable pump or vacuum pump installations, essentially consisting of pumps, motors and a stationary or movable mount base; basement draining installations, each consisting essentially of containers, pumps, pipes, engines, filters and control apparatus; housings, shafts, bearings, wheels from common metals, plastics or ceramics; valves for pumps, pump installations and pipelines; non-return, dosaging or relief-pressure valves; shaft couplings; separators for liquids; electric motors not for land vehicles; metal tubes; sound absorbers in this class; all the foregoing being machines or motors or parts of machines or motors included in this class

Ventilators; water supply installations; sewage disposal installations, each essentially consisting of containers, pumps, pipes, engines, filters, control apparatus; separators for dust other than electric; filter apparatus for water supply installations; metal tubes; all the foregoing being goods in this class

Electric separators for dust; valves for pumps operated automatically by any change in physical conditions, self-regulating fuel pumps and pipelines; non-return, dosaging valves, protective switches; flow detectors; measuring, signalizing, control and surveying apparatus; switches; relays and fuses for electric, pneumatic and hydraulic controls or drives; switch boards; all the aforegoing goods being goods in this class