IPC Subgroup
F22B 27/04 built-up from water tubes
Introduced: September 1968
Last revised: January 2006
Full Title
Instantaneous or flash steam boilers > built-up from water tubes
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- STEAM GENERATION
- Subclass:
- METHODS OF STEAM GENERATION; STEAM BOILERS
3 direct subcodes
Child Classifications
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- F22B 27/06 bent in serpentine or sinuous form
- F22B 27/08 bent helically, i.e. coiled
- F22B 27/1 bent spirally