IPC Main Group
F23J 3/00 Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- COMBUSTION APPARATUS; COMBUSTION PROCESSES
- Subclass:
- REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
Related Keywords
CLEANING combustion apparatus (e.g. furnace flues)
3 direct subcodes
Child Classifications
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