DIFF Subgroup
B21G 3/28 by forging or pressing
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Making pins, nails, or the like > by operations not restricted to one of the groups > by forging or pressing
CPC:
Making pins, nails, or the like (of pins with individual caps B21G5/00; of U-like shape B21G7/00; of split-pins B21G7/08) > by operations not restricted to one of the groups B21G3/12 - B21G3/16 (B21G3/06 - B21G3/10 take precedence) > by forging or pressing
No child classifications to compare. This is a leaf node in both IPC and CPC.