DIFF Main Group
B21B 28/00 Maintaining rolls or rolling equipment in effective condition (lubricating, cooling or heating rolls while in use B21B27/06)
Introduced: July 1974
Title
Titles differ between systems:
IPC: Maintaining rolls or rolling equipment in effective condition
CPC: Maintaining rolls or rolling equipment in effective condition (lubricating, cooling or heating rolls while in use B21B27/06)
Full Title
Full titles differ between systems:
IPC:
Maintaining rolls or rolling equipment in effective condition
CPC:
Maintaining rolls or rolling equipment in effective condition (lubricating, cooling or heating rolls while in use B21B27/06)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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- B21B 28/02 Maintaining rolls in effective condition, e.g. reconditioning since 1974 IPC+CPC Available in IPC and CPC