IPC Subgroup
F22B 33/04 of boilers of furnace-tube type with boilers of water-tube type
Introduced: September 1968
Last revised: January 2006
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 > of boilers of furnace-tube type with boilers of water-tube type
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- STEAM GENERATION
- Subclass:
- METHODS OF STEAM GENERATION; STEAM BOILERS