DIFF Subgroup
C25F 3/14 locally
Introduced: July 1974
Full Title
Electrolytic etching or polishing > Etching > locally
No child classifications to compare. This is a leaf node in both IPC and CPC.
C25F 3/14 Introduced: July 1974
Electrolytic etching or polishing > Etching > locally
No child classifications to compare. This is a leaf node in both IPC and CPC.