IPC Subgroup
C01B 13/11 by electric discharge
Introduced: July 1974
Last revised: January 2006
Full Title
Oxygen; Ozone; Oxides or hydroxides in general > Preparation of ozone > by electric discharge
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF