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Fried Krupp AG
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Fried Krupp AG
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Application filed by Fried Krupp AGfiledCriticalFried Krupp AG
Application grantedgrantedCritical
Publication of FR760856ApublicationCriticalpatent/FR760856A/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
B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
FR760856D1932-10-191933-09-14Procédé et appareil pour la fabrication de profilés cintrés
ExpiredFR760856A
(fr)