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E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
B—PERFORMING OPERATIONS; TRANSPORTING
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
B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
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FR1081701D1953-07-291953-07-29
Process and machines for the manufacture of caliber stirrups mainly for reinforced concrete reinforcement
ExpiredFR1081701A
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