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B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L11/00—Operation of points from the vehicle or by the passage of the vehicle
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FR479913D1914-10-191915-10-04Appareil de manoeuvre automatique des aiguilles de voies ferrées pour véhicules à traction électrique
ExpiredFR479913A
(fr)