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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
F16K27/02—Construction of housing; Use of materials therefor of lift valves
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FR488075D1916-12-271917-12-20Perfectionnements dans l'application de robinets à des objets en faience ou objets similaires
ExpiredFR488075A
(fr)