IPIQ

PERFORMING OPERATIONS; TRANSPORTING

B24

GRINDING; POLISHING

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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3/00

Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools

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B24B3/24

of drills

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B24B3/26

of the point of twist drills

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