Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to FR975937ApriorityCriticalpatent/FR1405334A/fr
Application grantedgrantedCritical
Publication of FR1405334ApublicationCriticalpatent/FR1405334A/fr
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
B21D11/08—Bending by altering the thickness of part of the cross-section of the work
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR975937A1964-05-261964-05-26Procédé et dispositif pour cintrer les tubes de gros diamètre
ExpiredFR1405334A
(fr)