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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
B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
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FR781636D1933-12-291934-11-21Rodeuse à main pour sièges de soupapes et analogues
ExpiredFR781636A
(fr)