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GAETAN LOUIS ALBERT FERON
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GAETAN LOUIS ALBERT FERON
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Application filed by GAETAN LOUIS ALBERT FERONfiledCriticalGAETAN LOUIS ALBERT FERON
Application grantedgrantedCritical
Publication of FR23649EpublicationCriticalpatent/FR23649E/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
(AREA)
FR23649A1920-04-271920-04-27Dispositif pour assurer la protection des trains de chemins de fer
ExpiredFR23649E
(fr)