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F22B37/00—Component parts or details of steam boilers
F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
F22B37/48—Devices or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
F22B37/54—De-sludging or blow-down devices
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FR537664D1921-06-291921-06-29Distributeur d'eau d'alimentation et nettoyeur pour chaudière
ExpiredFR537664A
(fr)