DIFF Subgroup
B21C 47/3408 Full Title
Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only (coiling wire into particular forms B21F3/00) > Feeding or guiding devices not specially adapted to a particular type of apparatus
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.