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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
B24B33/00—Honing machines or devices; Accessories therefor
Appareil et procede d'usinage de trous de centrage dans des pieces et de rectification simultanee, sans encre, de surfaces de revolution exterieures