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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
B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
B24B55/04—Protective covers for the grinding wheel
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Engineering & Computer Science
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FR400425D1908-06-041908-06-04Protecteur pour meules et outils rotatifs
ExpiredFR400425A
(fr)