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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
F16K47/00—Means in valves for absorbing fluid energy
F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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FR13670D1910-01-201911-01-03
Shock-absorbing retraction valve for liquids, gases and high pressure steam
ExpiredFR13670E
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