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JOH KREMENEZKY
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JOH KREMENEZKY
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Publication of FR604350ApublicationCriticalpatent/FR604350A/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
B61L29/288—Wiring diagram of the signal control circuits
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR604350D1924-10-111925-10-07Dispositif de signalisation pour passage à niveau
ExpiredFR604350A
(fr)