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E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
E01B3/48—Distance keepers or tie-rods for sleepers
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FR717307D1930-05-211931-05-20
Device for railways, intended to prevent the deflection of the ends of rails at the point of joints
ExpiredFR717307A
(en)