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CONST L ASTER ATEL
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Publication of FR652737ApublicationCriticalpatent/FR652737A/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
B61L5/1809—Daylight signals
B61L5/1818—Daylight signals using mobile coloured screen
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Engineering & Computer Science
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Mechanical Engineering
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FR652737D1927-09-201927-09-20Relais à oculaire mobile pour signaux de chemin de fer
ExpiredFR652737A
(fr)