IPC Subgroup
C10C 3/02 by chemical means
Introduced: September 1968
Last revised: January 2006
Full Title
Working-up pitch, asphalt, bitumen > by chemical means
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- Subclass:
- WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID
1 direct subcode
Child Classifications
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- C10C 3/04 by blowing or oxidising