Description
Class B23D : PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
Subclass 3/06: Planing or slotting machines cutting by relative movement of the tool and workpiece in a vertical or inclined straight line in which the tool or workpiece is fed otherwise than in a straight line in which the direction of feed is controlled by a copying device, e.g. by a pattern (features of copying devices B23Q 35/00)