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Societe des Condenseurs Delas SA
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Societe des Condenseurs Delas SA
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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
F22D3/00—Accumulators for preheated water
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FR569132D1923-07-271923-07-27Système d'alimentation de chaudières à vapeur
ExpiredFR569132A
(fr)