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发明名称
DEVICE FOR MEASURING HOLE DEPTH
摘要
申请公布号
RU1801201(C)
申请公布日期
1993.03.07
申请号
SU19904911917
申请日期
1990.12.25
申请人
VNII NEFTEPROMY GEOFIZ
发明人
MIKHAJLOV SERGEJ F,SU;GILMANSHIN TAGIR A,SU
分类号
G01B7/26;E21B47/04;G01B7/04
主分类号
G01B7/26
代理机构
代理人
主权项
地址
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