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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0880273 (1978-02-22) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 14 인용 특허 : 1 |
Trailers are loaded on and unloaded from railroad flatcars by use of a system including tractors to pull the trailers, an end ramp at the end of the train, and a movable side ramp structure at the side of the train. The movable ramp structure has a ramp and a retractable bridge extending from the to
A system for loading and unloading wheeled vehicles on a train of railroad cars, said system comprising, in combination, a first ramp at one end of said train, a side ramp device along side of and extending between said train and ground, means for forming said cars into a train-top roadway, a plural
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