IPC Main Group
C01G 33/00 Compounds of niobium
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES OR
Related Keywords
inorganic compounds of COLUMBIUMinorganic compounds of NIOBIUM