DIFF Main Group
C23F 13/00 Inhibiting corrosion of metals by anodic or cathodic protection
Introduced: September 1968
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1985.
Child Classifications
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- C23F 13/02 cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions since 1985 IPC+CPC Available in IPC and CPC