DIFF Subgroup
C23C 22/77 Controlling or regulating of the coating process
Introduced: January 1985
Full Title
Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals > characterised by the process > Controlling or regulating of the coating process
No child classifications to compare. This is a leaf node in both IPC and CPC.