DIFF Subgroup
B23B 39/20 Setting work or tool carrier along a circular index line; Turret head drilling machines
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 > Setting work or tool carrier along a circular index line; Turret head drilling machines
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 > Setting work or tool carrier along a circular index line; Turret head drilling machines
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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