IPC Main Group
C10N 80/00 Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal
Introduced: January 1985
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- Subclass:
- INDEXING SCHEME ASSOCIATED WITH SUBCLASS