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E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
E01B35/00—Applications of measuring apparatus or devices for track-building purposes
E—FIXED CONSTRUCTIONS
E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
E01B2203/00—Devices for working the railway-superstructure
E01B2203/16—Guiding or measuring means, e.g. for alignment, canting, stepwise propagation
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FR1138993D1955-12-191955-12-19Procédé et appareil pour la détermination continue du tracé plan des rails de chemins de fer ou analogues
ExpiredFR1138993A
(fr)