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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7/00
Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
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B24B7/20
characterised by a special design with respect to properties of the material of non-metallic articles to be ground
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B24B7/22
for grinding inorganic material, e.g. stone, ceramics, porcelain
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B24B7/228
for grinding thin, brittle parts, e.g. semiconductors, wafers
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