发明名称 |
Retractable wing keel for sailboats |
摘要 |
This invention pertains to a retractable wing keel for sailboats. A keel member is movably attached to the bottom of the sailboat, and a wing member is attached to the bottom of the keel member. In a first embodiment, the keel member is pivotally attached to the bottom of the sailboat and the wing member is pivotally attached to the bottom of the keel member. In a second embodiment, the keel member is slidably attached to the bottom of the sailboat and the wing member is fixedly attached to the bottom of the keel member.
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申请公布号 |
US6397771(B1) |
申请公布日期 |
2002.06.04 |
申请号 |
US20000604015 |
申请日期 |
2000.06.26 |
申请人 |
LEVI CLARK;MARTIN JAMES B. |
发明人 |
LEVI CLARK;MARTIN JAMES B. |
分类号 |
B63B41/00;(IPC1-7):B63B3/38 |
主分类号 |
B63B41/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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