of knife bars for harvesting machines

Full Title

Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools > of knife bars for harvesting machines

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

GRINDING; POLISHING

Subclass:

MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS