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发明名称
BORE-HOLE WALL SURFACE OBSERVATION DEVICE
摘要
申请公布号
PL333605(A1)
申请公布日期
2000.12.18
申请号
PL19990333605
申请日期
1999.06.07
申请人
BERES-PAWLIK ELZBIETA;LASISZ STANISLAW
发明人
分类号
E21B7/00;(IPC1-7):E21B7/00
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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