DIFF Subgroup
G06K 19/067 Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
Introduced: January 1990
Full Title
Record carriers for use with machines and with at least a part designed to carry digital markings > characterised by the kind of the digital marking, e.g. shape, nature, code > Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1990.
Child Classifications
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