DIFF Subgroup
B01D 3/4211 Full Title
Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping ( gas chromatography B01D15/08; destructive distillation C10B; preparation of alcoholic beverages by distillation C12H6/02) > Regulation; Control
Of 15 combined children, 0 exist in both systems.
15 codes are CPC-only extensions.