Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B24
GRINDING; POLISHING
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B24B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
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13/00
Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
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B24B13/0031
Machines having several working posts; Feeding and manipulating devices
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B24B13/0037
the lenses being worked by different tools, e.g. for rough-grinding, fine-grinding, polishing
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