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HENRI PIERRE DHERS
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HENRI PIERRE DHERS
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Application filed by HENRI PIERRE DHERSfiledCriticalHENRI PIERRE DHERS
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Publication of FR18105EpublicationCriticalpatent/FR18105E/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)
FR18105D1912-12-061913-06-27Système de block automatique pour chemins de fer
ExpiredFR18105E
(fr)