发明名称 Pleasure boat for observing the bottom of the sea.
摘要 <p>The pleasure boat according to the invention comprises a well in its flat bottom (1a) enabling a cylindrical gondola (14) to slide between two positions, one retracted into the hull (1) and the other projecting beneath the said hull, so that the portholes (19) are situated beneath the water line. &lt;IMAGE&gt;</p>
申请公布号 EP0277068(A1) 申请公布日期 1988.08.03
申请号 EP19880400138 申请日期 1988.01.22
申请人 RAMOND, MARCEL 发明人 RAMOND, MARCEL
分类号 B63C11/49;B63C11/48;(IPC1-7):B63G8/00 主分类号 B63C11/49
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