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经营范围
发明名称
HOLE DIAMETER MEASURING DEVICE
摘要
申请公布号
SU754052(A1)
申请公布日期
1980.08.07
申请号
SU19782622000
申请日期
1978.05.29
申请人
VNII NEFTEPROMYSLOVOJ GEOFIZIKI
发明人
LAPTEV VLADIMIR V,SU;FILIN NIKOLAJ ,SU;ZAKHAROV VLADIMIR A,SU;KISELEV ARKADIJ V,SU;GLINKIN VLADIMIR ,SU
分类号
E21B47/08;(IPC1-7):E21B47/08
主分类号
E21B47/08
代理机构
代理人
主权项
地址
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