B21L - CPC Classification

• B21L1/00 » Making chains or chain links by bending work-pieces of rod, wire, or strip to form links of oval or other simple shape 3
• B21L11/00 » Making chains or chain links of special shape 11
• B21L13/00 » Making terminal or intermediate chain links of special shape; making couplings for chains, e.g. swivels, shackles 3
• B21L15/00 » Finishing or dressing chains or chain links, e.g. removing burr material, calibrating 20
• B21L19/00 » Appurtenances for chain-making not restricted to any particular process 5
• B21L21/00 » Tools or implements for repairing chains using metal-working operations. e.g. for detaching deformed chain links 28
• B21L3/02 » Machines or devices for welding chain links 3
• B21L5/02 » in such a way that interconnected links are formed 2
• B21L7/00 » Making chains or chain links by cutting single loops or loop-parts from coils, assembling the cut parts and subsequently subjecting same to twisting with or without welding 3
• B21L9/02 » of roller-chain or other plate-link type 10
• B21L99/00 » Subject matter not provided for in other groups of this subclass 8