DIFF Subgroup
B25B 23/105 Full Title
Details of, or accessories for, spanners, wrenches, screwdrivers (bolt tensioners B25B29/02) > Arrangements for handling screws or nuts > for holding or positioning screw or nut prior to or during its rotation > using mechanical gripping means
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.