for grinding cylindrical surfaces, e.g. on bolts

Full Title

Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor > involving centreless means for supporting, guiding, floating or rotating work > for grinding cylindrical surfaces, e.g. on bolts

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