DIFF Subgroup
C25F 1/08 Refractory metals
Introduced: July 1974
Title
Titles differ between systems:
IPC: of refractory metals
CPC: Refractory metals
Full Title
Full titles differ between systems:
IPC:
Electrolytic cleaning, degreasing, pickling, or descaling > Pickling; Descaling > in solution > of refractory metals
CPC:
Electrolytic cleaning, degreasing, pickling or descaling > Pickling; Descaling > in solution > Refractory metals
No child classifications to compare. This is a leaf node in both IPC and CPC.