IPC Subgroup
C02F 11/1 by pyrolysis
Introduced: January 1980
Last revised: January 2006
Full Title
Treatment of sludge; Devices therefor > by pyrolysis
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- Subclass:
- TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE