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Publication of FR944189ApublicationCriticalpatent/FR944189A/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
B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
B61L5/189—Light signals; Mechanisms associated therewith, e.g. blinders using flashing light sources
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Mechanical Engineering
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FR944189D1947-03-311947-03-31Dispositif permettant d'obtenir la synchronisation ou l'alternance dans la distribution de courant électrique
ExpiredFR944189A
(fr)