IPC Main Group
B21L 9/00 Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- Subclass:
- MAKING METAL CHAINS
1 direct subcode
Child Classifications
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- B21L 9/02 of roller-chain or other plate-link type