IPC Subgroup
C02F 1/5 by addition or application of a germicide or by oligodynamic treatment
Introduced: January 1980
Last revised: January 2023
Full Title
Treatment of water, waste water, or sewage > by addition or application of a germicide or by oligodynamic treatment
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- Subclass:
- TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE