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经营范围
发明名称
Ocean floor dredging.
摘要
<p>A system of sea bed dredging comprises a first vessel (20), two rotatable rollers (21, 22) on the vessel, a third roller (23) lying on the ocean floor (24), and an endless net (25) extending around the three rollers.</p>
申请公布号
EP0302762(A1)
申请公布日期
1989.02.08
申请号
EP19880307320
申请日期
1988.08.08
申请人
MANACO INTERNATIONAL
发明人
MALECA, MILOSLAV
分类号
E02F3/08;E02F7/00;E21C45/00;(IPC1-7):E02F7/00
主分类号
E02F3/08
代理机构
代理人
主权项
地址
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