by means of tools with abrading surfaces corresponding in shape with the lenses to be made

Full Title

Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor > by means of tools with abrading surfaces corresponding in shape with the lenses to be made

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