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B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
B21B39/20—Revolving, turning-over, or like manipulation of work, e.g. revolving in trio stands
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FR115010A1967-07-201967-07-20Procédé et dispositif pour le retournement automatique de profilés
ExpiredFR1537933A
(fr)