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发明名称
APPARATUS FOR COLLECTING PIECES OF SOLID MATERIAL OF DESIRED SIZES FROM A BED BENEATH A BODY OF LIQUID
摘要
申请公布号
GB1518426(A)
申请公布日期
1978.07.19
申请号
GB19760008073
申请日期
1976.03.01
申请人
INCO EUROPE LTD
发明人
分类号
E21C45/00;E02F3/92;E02F7/06;E21C45/02;E21C50/00;E21C50/02;(IPC1-7):E02F7/00
主分类号
E21C45/00
代理机构
代理人
主权项
地址
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