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Publication of FR892474ApublicationCriticalpatent/FR892474A/fr
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
F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
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Mechanical Engineering
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FR892474D1943-01-151943-01-15Dispositif de sécurité pour conduites à fluide
ExpiredFR892474A
(fr)