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经营范围
发明名称
PROCESS FOR MAKING A WELL
摘要
申请公布号
EP0345256(B1)
申请公布日期
1992.11.11
申请号
EP19870907739
申请日期
1987.11.29
申请人
TERRATRONIC VERTRIEB VON ZIELBOHRSYSTEMEN GMBH
发明人
GROTENDORST, JOSEF;GROTENDORST, GERHARD
分类号
E03B3/12;E21B43/04;E21B43/12;E21B49/08
主分类号
E03B3/12
代理机构
代理人
主权项
地址
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