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发明名称
VORRICHTUNG ZUM HERSTELLEN VON BOHRUNGEN IM ERDREICH
摘要
申请公布号
DE2362425(B2)
申请公布日期
1977.03.17
申请号
DE19732362425
申请日期
1973.12.15
申请人
发明人
分类号
E02F5/08;E02D17/13;E02F3/20;E02F5/02;E02F5/20;E21B4/00;E21B4/04;E21B4/16;E21B4/18;E21B7/00;E21D1/06;(IPC1-7):E21B9/08
主分类号
E02F5/08
代理机构
代理人
主权项
地址
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