IPC Subgroup
F22B 27/12 built-up from rotary heat-exchange elements, e.g. from tube assemblies
Introduced: September 1968
Last revised: January 2006
Full Title
Instantaneous or flash steam boilers > built-up from rotary heat-exchange elements, e.g. from tube assemblies
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- STEAM GENERATION
- Subclass:
- METHODS OF STEAM GENERATION; STEAM BOILERS