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F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
F16K27/00—Construction of housing; Use of materials therefor
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FR1114999D1954-11-201954-11-20éléments de robinetterie et leur procédé de fabrication
ExpiredFR1114999A
(fr)