DIFF Subgroup
B25B 17/02 providing for torque amplification
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Hand-driven gear-operated wrenches or screwdrivers > providing for torque amplification
CPC:
Hand-driven gear-operated wrenches or screwdrivers (ratchet-operated B25B13/46 , B25B15/04; ) > providing for torque amplification
No child classifications to compare. This is a leaf node in both IPC and CPC.