DIFF Subgroup
C23F 1/46 Regeneration of etching compositions
Introduced: January 1985
Full Title
Full titles differ between systems:
IPC:
Etching metallic material by chemical means > Regeneration of etching compositions
CPC:
Etching metallic material by chemical means (manufacture of printing surfaces B41C; manufacture of printed circuits H05K) > Regeneration of etching compositions
No child classifications to compare. This is a leaf node in both IPC and CPC.