CPC Subgroup
B24B 13/04 grinding of lenses involving grinding wheels controlled by gearing (B24B13/06 takes precedence)
Full Title
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) > grinding of lenses involving grinding wheels controlled by gearing (B24B13/06 takes precedence)
2 direct subcodes
Child Classifications
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