DIFF Subgroup
C22C 1/1036 Full Title
Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36) > Alloys containing non-metals (C22C1/05, C22C1/08 take precedence)
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.