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Priority to FR805512ApriorityCriticalpatent/FR1244463A/fr
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Publication of FR1244463ApublicationCriticalpatent/FR1244463A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
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Engineering & Computer Science
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Mechanical Engineering
(AREA)
FR805512A1959-09-181959-09-18Dispositif perfectionné pour le contrôle de positionnement des aiguilles de voies ferrées
ExpiredFR1244463A
(fr)