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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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FR496969D1917-12-081918-11-18Système de controle des trains de chemins de fer et autres
ExpiredFR496969A
(fr)
Perfectionnements apportés aux accouplements pour voitures de trains de chemins de fer, tels, notamment, que ceux pour montagnes russes ou autres chemins de fer de plaisir