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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0411690 (1989-09-25) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 39 인용 특허 : 2 |
A propulsion system for a water-borne vessel. There is a generally inflexible fin member. A projection member is connected to the vessel. It has a resilient connecting member attached to the generally inflexible fin member. The projection member is connected to the vessel so as to be held below wate
A water-borne vessel to be propelled by an operator on the vessel, the vessel comprising: a hull having a bow and a stern; an opening in the hull said opening having opposed sides; a projection extending upwardly from each side of the opening; recesses on the upper surfaces of the projections; the v
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