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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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FR383245D1907-10-241907-10-24Appareil avertisseur et enregistreur de disques fermés déterminant le ralentissement ou l'arret automatique du train
ExpiredFR383245A
(fr)
Procédé et dispositif pour arreter les trains de chemins de fer en cas de danger et pour remédier à la négligence des mécaniciens ou des préposés aux signaux