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E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
E01B29/02—Transporting, laying, removing, or renewing lengths of assembled track, assembled switches, or assembled crossings
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FR922230D1945-12-261945-12-26Procédé et dispositif pour la pose, la dépose ou le ripage des voies ferrées ou pour la manutention d'objets lourds
ExpiredFR922230A
(fr)