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CHEVRIN GULLY ETS
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CHEVRIN GULLY ETS
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Application filed by CHEVRIN GULLY ETSfiledCriticalCHEVRIN GULLY ETS
Application grantedgrantedCritical
Publication of FR776700ApublicationCriticalpatent/FR776700A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L29/00—Safety means for rail/road crossing traffic
B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
B61L29/286—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated using conductor circuits controlled by the vehicle
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR776700D1934-05-121934-05-12Système de signalisation pour passage à niveau
ExpiredFR776700A
(fr)