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F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
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FR667620D1928-10-311928-10-31Procédé de préparation d'eau alimentaire pour chaudières à vapeur et notamment pour chaudières à haute pression
ExpiredFR667620A
(fr)
Procédé et dispositif pour, simultanément, améliorer l'épuration de l'eau alimentant des chaudières à haute pression et éviter l'emploi de vapeur trop humide au cours de la détente