CPC Subgroup
F22B 37/54 De-sludging or blow-down devices
Full Title
Component parts or details of steam boilers > applicable to more than one kind or type of steam boiler > Devices or arrangements for removing water, minerals or sludge from boilers (cleaning water tubes, furnace tubes or the like of boilers F28G) > De-sludging or blow-down devices
1 direct subcode
Child Classifications
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