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E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
E01D15/00—Movable or portable bridges; Floating bridges
E01D15/06—Bascule bridges; Roller bascule bridges, e.g. of Scherzer type
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FR917258D1938-11-011945-11-13Dispositif de commande pour le mouvement d'un pont mobile, d'une écluse ou d'une autre construction mobile
ExpiredFR917258A
(fr)