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Priority to FR758917ApriorityCriticalpatent/FR73155E/fr
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Publication of FR73155EpublicationCriticalpatent/FR73155E/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
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Engineering & Computer Science
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Mechanical Engineering
(AREA)
FR758917A1958-02-241958-02-24Appareil d'entraînement et de verrouillage
ExpiredFR73155E
(fr)