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B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
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Engineering & Computer Science
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Platform Screen Doors And Railroad Systems
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Railway Tracks
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FR607351D1924-11-061925-11-03Système évitant les déraillements de trains
ExpiredFR607351A
(fr)