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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Application filed by IG Farbenindustrie AGfiledCriticalIG Farbenindustrie AG
Application grantedgrantedCritical
Publication of FR682117ApublicationCriticalpatent/FR682117A/en
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
B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
FR682117D1928-10-031929-09-21
Method for manufacturing profiles of uniform thickness, starting from sheet metal strips and device for its production
ExpiredFR682117A
(en)