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Luchaire SA
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Luchaire SA
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Publication of FR523968ApublicationCriticalpatent/FR523968A/en
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
B61L5/12—Visible signals
B61L5/14—Form signals, e.g. semaphore arms
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Engineering & Computer Science
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Mechanical Engineering
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FR523968A1920-02-201920-02-20
Advanced semaphore signal for railways
ExpiredFR523968A
(en)