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C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
C21D7/00—Modifying the physical properties of iron or steel by deformation
C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
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FR658412D1927-08-111928-07-30Procédé pour élever la limite élastique (ou plastique) d'éléments de construction établis en métaux
ExpiredFR658412A
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