DIFF Subgroup
F22B 33/02 Combinations of boilers having a single combustion apparatus in common
Introduced: September 1968
Full Title
Steam-generation plants, e.g. comprising steam boilers of different types in mutual association > Combinations of boilers having a single combustion apparatus in common
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
Child Classifications
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- F22B 33/04 of boilers of furnace-tube type with boilers of water-tube type IPC+CPC Available in IPC and CPC
- F22B 33/06 of boilers of furnace-tube type with boilers of fire-tube type IPC+CPC Available in IPC and CPC
- F22B 33/08 of boilers of water-tube type with boilers of fire-tube type IPC+CPC Available in IPC and CPC
- F22B 33/10 of two or more superposed boilers with separate water volumes and operating with two or more separate water levels IPC+CPC Available in IPC and CPC