IPC Subgroup
C25B 13/02 characterised by shape or form
Introduced: July 1974
Last revised: January 2006
Full Title
Diaphragms; Spacing elements > characterised by shape or form
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- Subclass:
- ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR