DIFF Subgroup
B21L 15/02 Twisting already closed links
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Finishing or dressing chains or chain links, e.g. removing burr material, calibrating > Twisting already closed links
CPC:
Finishing or dressing chains or chain links, e.g. removing burr material, calibrating (B21L9/06 takes precedence) > Twisting already closed links
No child classifications to compare. This is a leaf node in both IPC and CPC.