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Publication of FR554705ApublicationCriticalpatent/FR554705A/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
F16K41/00—Spindle sealings
F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
F16K41/12—Spindle sealings with diaphragm, e.g. shaped as bellows or tube with approximately flat diaphragm
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FR554705D1921-08-021922-08-02Perfectionnements aux valves et robinets
ExpiredFR554705A
(fr)