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发明名称
UNDERWATER TRENCHING APPARATUS
摘要
申请公布号
IE790911(L)
申请公布日期
1979.12.01
申请号
IE19790000911
申请日期
1979.08.08
申请人
BROWN & ROOT INC
发明人
分类号
E02F5/10;(IPC1-7):E02F5/02
主分类号
E02F5/10
代理机构
代理人
主权项
地址
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