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ERNEST LAGARD
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ERNEST LAGARD
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Application filed by ERNEST LAGARDfiledCriticalERNEST LAGARD
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Publication of FR356295ApublicationCriticalpatent/FR356295A/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
B61L5/12—Visible signals
B61L5/14—Form signals, e.g. semaphore arms
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR356295D1905-07-221905-07-22Application de la tole émaillée aux disques des chemins de fer
ExpiredFR356295A
(fr)