Patents for B61F 9 - Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels (409)
07/1977
07/12/1977US4034680 Dual-mode bus
06/1977
06/21/1977US4030422 Switching system for guided vehicles
06/07/1977US4027596 Rapid transit system
05/1977
05/17/1977US4023503 Conveying installation
04/1977
04/19/1977US4018410 Method for the optimized transportation of passengers or objects
12/1976
12/21/1976US3998166 Multi-rail system and method of installation
12/07/1976US3995560 Rail obstruction sensing means for a rail transportation system
11/1976
11/30/1976US3994459 Railway vehicle derailment detection system
03/1976
03/02/1976US3941062 Electromagnetic system for transversely aligning railway rolling stock on rails
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