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发明名称
Benne automatique de forage
摘要
申请公布号
CH498282(A)
申请公布日期
1970.10.31
申请号
CH19700000677
申请日期
1970.01.19
申请人
ALLARD,PIERRE JEAN-MARIE THEODORE
发明人
THEODORE ALLARD,PIERRE JEAN-MARIE
分类号
E02F3/47;E02F3/413;E21B7/02;E21B11/04;E21B27/00;(IPC1-7):E21B11/04
主分类号
E02F3/47
代理机构
代理人
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地址
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