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发明名称
GROEFTEGRAVEMASKIN
摘要
申请公布号
NO823078(A)
申请公布日期
1983.03.14
申请号
NO19820003078
申请日期
1982.09.10
申请人
BRITISH PETROLEUM COMP P.L.C., THE,
发明人
REECE, ALAN RICHARD,
分类号
E02F5/10;(IPC1-7):E02F/
主分类号
E02F5/10
代理机构
代理人
主权项
地址
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