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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0089663 (1979-10-30) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 4 |
A floating vessel having a pair of inclined tracks on which one or more carriages are movably mounted and such vessel has a plurality of compartments or tanks which may be selectively flooded or pumped dry to control the trim of the vessel. When the forward tanks are flooded, the bow portion of the
A marine vessel for lifting and elevating heavy objects relative to the surface of a body of water comprising a buoyant hull having first and second ends, a main deck, said hull having a plurality of compartments for receiving ballast, means for selectively introducing ballast into and removing ball
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