发明名称 Device for gathering seed oysters
摘要 The device for gathering seed oysters comprises collectors in the form of discs 4, separated by spacers 5, threaded onto an elongate tube-shaped floating structure 1 which is ballasted at its lower part 3. The device for gathering seed oysters may be in the form of a line consisting a set of gathering devices joined together by linkage means. The invention also relates to the collector discs 4, whose surfaces are roughened and which comprise, at the centre, a mortise allowing them to be driven on an appropriate apparatus for the emptying operation. <IMAGE>
申请公布号 FR2613186(A1) 申请公布日期 1988.10.07
申请号 FR19870004842 申请日期 1987.04.03
申请人 GRALL HENRI 发明人
分类号 A01K61/00 主分类号 A01K61/00
代理机构 代理人
主权项
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