| More topics under "B24 - Grinding; Polishing" (197,464) |
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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 (140,865) |
| B24C - Abrasive or related blasting with particulate material (19,103) |
| B24D - Tools for grinding, buffing or sharpening (37,496) |