DIFF Subgroup
B23B 3/28 Turning-machines in which the feed is controlled by a copying device, i.e. copying lathes
Introduced: September 1968
Full Title
General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines > Turning-machines in which the feed is controlled by a copying device, i.e. copying lathes