IPC Main Group
C05F 7/00 Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- FERTILISERS; MANUFACTURE THEREOF
- Subclass:
- ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES , , e.g. FERTILISERS FROM WASTE OR REFUSE
Related Keywords
using sewage SLUDGE as fertiliser
2 direct subcodes
Child Classifications
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