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经营范围
发明名称
Bohrloch-Sonde
摘要
申请公布号
DE3404832(C1)
申请公布日期
1985.07.18
申请号
DE19843404832
申请日期
1984.02.09
申请人
PRAKLA-SEISMOS GMBH, 3000 HANNOVER, DE
发明人
LICHTER, DIETER, 3000 HANNOVER, DE;NOLTE, ERNST, 3014 LAATZEN, DE
分类号
E21B23/01;G01V11/00;(IPC1-7):E21B49/00;E21B23/00
主分类号
E21B23/01
代理机构
代理人
主权项
地址
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