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COUSIN ET CIE SOC
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COUSIN ET CIE SOC
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Publication of FR340067ApublicationCriticalpatent/FR340067A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
B61L5/20—Audible signals, e.g. detonator audible signalling
B61L5/22—Devices for initiating the release of detonators in a certain position of a signal
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Mechanical Engineering
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FR340067D1904-01-301904-01-30Appareil détonateur pour la répétition des signaux d'arret sur les voies de chemins de fer
ExpiredFR340067A
(fr)