Blocking means, chucks or the like; Alignment devices

Full Title

Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor > Blocking means, chucks or the like; Alignment devices

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