DIFF Subgroup
B21C 3/02 Dies; Selection of material therefor; Cleaning thereof
Introduced: September 1968
Full Title
Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing > Dies; Selection of material therefor; Cleaning thereof
Of 6 combined children, 5 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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