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Publication of FR641800ApublicationCriticalpatent/FR641800A/fr
B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
B61K9/08—Measuring installations for surveying permanent way
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FR641800D1927-10-041927-10-04Dispositif de sécurité indiquant les coupures des voies de chemin de fer
ExpiredFR641800A
(fr)