DIFF Main Group
B21B 27/00 Rolls, (shape of working surfaces required by special processes B21B1/00); Lubricating, cooling or heating rolls while in use
Introduced: September 1968
Title
Titles differ between systems:
IPC: Rolls; Lubricating, cooling or heating rolls while in use
CPC: Rolls, (shape of working surfaces required by special processes B21B1/00); Lubricating, cooling or heating rolls while in use
Full Title
Full titles differ between systems:
IPC:
Rolls; Lubricating, cooling or heating rolls while in use
CPC:
Rolls, (shape of working surfaces required by special processes B21B1/00); Lubricating, cooling or heating rolls while in use
Of 3 combined children, 2 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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- B21B 27/02 Shape or construction of rolls (for rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects B21H8/02 ) +4 CPC IPC+CPC Available in IPC and CPC