IPC Definitions - January 01, 2012

G06Q 20/34 - Definition fr

Informative references

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