More topics under "B61J - Shifting or shunting of rail vehicles" (919) |
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B61J 1 - Turntables; Traversers; Transporting rail vehicles on other rail vehicles or dollies (393) |
B61J 3 - Shunting or short-distance haulage devices; Similar devices for hauling trains on steep gradients or as starting aids; Car-propelling devices therefor (522) |
B61J 99 - Subject matter not provided for in other groups of this subclass (4) |