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F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
F22D5/08—Controlling water feed or water level; Automatic water feeding or water-level regulators with float-actuated valves
F22D5/12—Controlling water feed or water level; Automatic water feeding or water-level regulators with float-actuated valves and with dipping tubes
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FR577305D1924-02-191924-02-19Indicateur-alimentateur universel pour chaudières à vapeur ou autres récipients avec ou sans pression
ExpiredFR577305A
(fr)