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B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
B21D11/14—Twisting
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FR1042313D1951-09-191951-09-19Procédé et appareils pour tordre une portion de tube
ExpiredFR1042313A
(fr)
Cintreuse pour le guide tubulaire d'un dispositif d'enfilage du papier mobile dans les trois dimensions, utilisable dans une presse a imprimer rotative
Cintreuse pour le guide tubulaire d'un dispositif d'enfilage du papier mobile dans les trois dimensions, utilisable dans une presse a imprimer rotative