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INTERNAT SECURITIES Co
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INTERNAT SECURITIES Co
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Application filed by INTERNAT SECURITIES CofiledCriticalINTERNAT SECURITIES Co
Application grantedgrantedCritical
Publication of FR374000ApublicationCriticalpatent/FR374000A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
B61L23/12—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only partly operated by train
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR374000D1906-11-121906-11-12Appareil à signaux pour blocs de chemins de fer
ExpiredFR374000A
(fr)