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ILE D EXPL D APP D AIGUILLAGE
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ILE D EXPL D APP D AIGUILLAGE
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Application filed by ILE D EXPL D APP D AIGUILLAGEfiledCriticalILE D EXPL D APP D AIGUILLAGE
Application grantedgrantedCritical
Publication of FR633329ApublicationCriticalpatent/FR633329A/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
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR633329D1927-04-261927-04-26Dispositif perfectionné de verrouillage automatique des appareils d'aiguillage pour voies ferrées
ExpiredFR633329A
(fr)