Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills

Introduced: September 1968

CPC subdivides this area 10x more granularly than IPC with 9 additional codes.

9 codes are CPC-only extensions.

Note: 6 CPC extensions are marked as secondary classification only.

Child Classifications

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B21B 15/0007 +2 CPC CPC only CPC only
B21B 15/0035 +2 CPC CPC only CPC only
B21B 15/0085 CPC only CPC only
B21B 15/02 in which work is subjected to permanent internal twisting, e.g. for producing reinforcement bars for concrete IPC+CPC Available in IPC and CPC
B21B 2015/0028 2nd only CPC only CPC only
B21B 2015/0057 2nd only CPC only CPC only
B21B 2015/0064 2nd only CPC only CPC only
B21B 2015/0071 2nd only CPC only CPC only
B21B 2015/0078 2nd only CPC only CPC only
B21B 2015/0092 2nd only CPC only CPC only