DIFF Subgroup
C03C 25/68 by etching
Introduced: January 2000
Full Title
Full titles differ between systems:
IPC:
Surface treatment of fibres or filaments made from glass, minerals or slags > Chemical treatment, e.g. leaching, acid or alkali treatment > by etching
CPC:
Surface treatment of fibres or filaments made from glass, minerals or slags > Chemical treatment, e.g. leaching, acid or alkali treatment (dehydroxylation C03C25/64) > by etching
No child classifications to compare. This is a leaf node in both IPC and CPC.