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PCE
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DIFF Subgroup
B23B 39/22

with working-spindles in opposite headstocks

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

General-purpose boring or drilling machines or devices; Sets of boring or drilling machines > Drilling machines with a plurality of working-spindles; Drilling automatons > with working-spindles in opposite headstocks

CPC:

General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines > Drilling machines with a plurality of working-spindles; Drilling automatons > with working-spindles in opposite headstocks

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