DIFF Subgroup
G06Q 20/341 Full Title
Payment architectures, schemes or protocols (apparatus for performing or posting payment transactions G07F7/08, G07F19/00; electronic cash registers G07G1/12) > characterised by the use of specific devices > using cards, e.g. integrated circuit [IC] cards or magnetic cards
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.