FR543140A - Système de distributeur de liquides sous pression, se fermant automatiquement dès que l'organe de manoeuvre n'est plus actionné
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Système de distributeur de liquides sous pression, se fermant automatiquement dès que l'organe de manoeuvre n'est plus actionné
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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
F16K21/00—Fluid-delivery valves, e.g. self-closing valves
F16K21/04—Self-closing valves, i.e. closing automatically after operation
F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
F16K21/12—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening with hydraulically-operated opening means; with arrangements for pressure relief before opening
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FR543140D1921-03-111921-03-11Système de distributeur de liquides sous pression, se fermant automatiquement dès que l'organe de manoeuvre n'est plus actionné
ExpiredFR543140A
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