IPC Subgroup
C01B 21/076 with titanium or zirconium
Introduced: January 1980
Last revised: January 2006
Full Title
Nitrogen; Compounds thereof > Binary compounds of nitrogen with metals, with silicon, or with boron > with titanium or zirconium
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF