IPC Definitions - January 01, 2012

C09K 13/00 - Definition fr

References relevant to classification in this main group

This main group does not cover:

Places in relation to which this group is residual:

Etching of glass

C03C 15/00

Etching of natural stone, artificial stone or ceramics

C04B 41/52, C04B 41/72, C04B 41/91

Etching or brightening of metallic material

C23F, C23G 1/00, C25F 1/00

Special rules of classification

In groups C09K 13/02-C09K 13/12, a composition is classified in the last appropriate place.