IPC Definitions - January 01, 2012
G06Q 20/34 - Definition
Attention is drawn to the following places, which may be of interest for search:
Record carriers for use with machines, carrying digital markings and with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards | G06K 19/067 |
Using coded cards in telephones | H04M 1/675 |