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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
B21D7/00—Bending rods, profiles, or tubes
B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
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FR691604D1930-03-081930-03-08Dispositif d'embrayage du plateau porte-galets dans les machines à cintrer les tubes à froid sans les remplir
ExpiredFR691604A
(fr)
Dispositif de commande des déplacements radiaux des galets extérieurs dans les machines à cintrer les tubes à froid sans les remplir, avec forme centrale motrice