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PCE
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DIFF Subgroup
B23B 41/02

for boring deep holes; Trepanning, e.g. of gun or rifle barrels

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor > for boring deep holes; Trepanning, e.g. of gun or rifle barrels

CPC:

Boring or drilling machines or devices specially adapted for particular work ; Accessories specially adapted therefor > for boring deep holes; Trepanning, e.g. of gun or rifle barrels

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