Apparatus for water supply, sanitary purposes, heating and steam generating, namely, heating installations and regulating accessories for water supply, specifically, metered valves; taps and tapware being faucets; plumbing fittings in this class, namely, valves, cocks and faucets; controlled mixers, namely, including mixer taps for water pipes, basin mixer taps for wash basins, plumbing fixtures in the nature of bath mixers and shower mixers; apparatus for the control of the force and flow of...