Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PL107558Aexternal-prioritypatent/PL52547B1/pl
Application filedfiledCritical
Publication of BE676697ApublicationCriticalpatent/BE676697A/xx
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
B61L29/282—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 magnetic or inductive control by the vehicle
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Train Traffic Observation, Control, And Security
(AREA)
Electric Propulsion And Braking For Vehicles
(AREA)
