DIFF Subgroup
B27C 3/08 Operator-supported drilling machines or devices
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Drilling machines or drilling devices; Equipment therefor > Operator-supported drilling machines or devices
CPC:
Drilling machines or drilling devices; Equipment therefor (B23B takes precedence) > Operator-supported drilling machines or devices
No child classifications to compare. This is a leaf node in both IPC and CPC.