IPC Definitions - January 01, 2012

G06K 21/00 - Definition fr

References relevant to classification in this main group

This main group does not cover:

Detection or correction of errors by rescanning patterns

G06K 9/03

Checking correct operation of card-conveying mechanisms

G06K 13/06

Record carriers for use with machines and with at least a part designed to carry digital marking

G06K 19/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Tools for perforating in general

B26F