DIFF Subgroup
B23B 41/06 for boring conical holes
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 conical holes
CPC:
Boring or drilling machines or devices specially adapted for particular work ; Accessories specially adapted therefor > for boring conical holes
No child classifications to compare. This is a leaf node in both IPC and CPC.