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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
B24B47/00—Drives or gearings; Equipment therefor
B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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FR627143D1926-09-181927-01-06Dispositif d'avancement pour machines outils et surtout pour machines à meuler
ExpiredFR627143A
(fr)