DIFF Subgroup
B21L 9/02 of roller-chain or other plate-link type
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains > of roller-chain or other plate-link type
CPC:
Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains (B21L1/04, B21L7/00, B21L11/14, B21L13/00 take precedence) > of roller-chain or other plate-link type
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
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- B21L 9/04 Punching or bending the different parts of the chain links IPC+CPC Available in IPC and CPC
- B21L 9/06 Sorting, feeding, assembling, riveting, or finishing parts of chains +1 CPC IPC+CPC Available in IPC and CPC
- B21L 9/08 Combining the chain links with auxiliary parts, e.g. welding-on wear-resistant parts IPC+CPC Available in IPC and CPC