DIFF Subgroup
B24B 13/02 by means of tools with abrading surfaces corresponding in shape with the lenses to be made
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
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
CPC:
Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor (edging optical work, e.g. lenses, prisms B24B9/14) > by means of tools with abrading surfaces corresponding in shape with the lenses to be made
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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