DIFF Subgroup
B21J 7/04 Power hammers
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Hammers; Forging machines with hammers or die jaws acting by impact > Special design or construction > Power hammers
CPC:
Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H) > Special design or construction > Power hammers
No child classifications to compare. This is a leaf node in both IPC and CPC.