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PCE
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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.