CPC Subgroup
B21L 9/02 of roller-chain or other plate-link type
Full Title
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
3 direct subcodes
Child Classifications
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