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B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
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FR1049991D1951-01-301952-01-30Procédé pour l'usinage par meulage d'articles de coutellerie
ExpiredFR1049991A
(fr)