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Publication of FR780EpublicationCriticalpatent/FR780E/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
B61L3/04—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling mechanically
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Engineering & Computer Science
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Mechanical Engineering
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FR780D1900-07-091902-06-28Dispositif pour l'attaque des appareils d'alarme et d'avertissement en usage sur les chemins de fer
ExpiredFR780E
(fr)
Composition de revetement pour proteger des glaces en matiere plastique, pour des dispositifs d'eclairage et de signalisation de vehicules procede de realisation.