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DIFF Subgroup
B21C 3/18

Making tools by operations not covered by a single other subclass; Repairing

Introduced: September 1968

Full Title

Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing > Making tools by operations not covered by a single other subclass; Repairing

No child classifications to compare. This is a leaf node in both IPC and CPC.