DIFF Subgroup
C23F 1/10 Etching compositions (C23F1/44 takes precedence)
Introduced: January 1985
Title
Titles differ between systems:
IPC: Etching compositions
CPC: Etching compositions (C23F1/44 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Etching metallic material by chemical means > Etching compositions
CPC:
Etching metallic material by chemical means (manufacture of printing surfaces B41C; manufacture of printed circuits H05K) > Etching compositions (C23F1/44 takes precedence)
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1985.
Child Classifications
Navigate with arrow keys, Enter to open