DIFF Subgroup
C02F 1/4693 Full Title
Treatment of water, waste water, or sewage (C02F3/00 - C02F9/00 take precedence) > by electrochemical methods > by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.