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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 for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
F22B37/54—De-sludging or blow-down devices
F22B37/545—Valves specially adapted therefor
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FR626450D1926-03-271926-03-27Perfectionnements apportés aux vannes pour purge continue de vapeur ou d'eau à haute pression, ou autres applications
ExpiredFR626450A
(fr)
Appareil régulateur de pression anti-bélier pour les conduites de liquide, industrielles ou domestiques (perfectionnement au brevet n°469.463, du 10 mars 1914)