Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B21J 7/40

driven by hydraulic or liquid pressure

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Hammers; Forging machines with hammers or die jaws acting by impact > Drives for hammers; Transmission means therefor > for drop hammers > driven by hydraulic or liquid pressure

CPC:

Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H) > Drives for hammers; Transmission means therefor > for drop hammers > driven by hydraulic or liquid pressure

No child classifications to compare. This is a leaf node in both IPC and CPC.