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发明名称
SEALED JOINT OF DOWNHOLE INSTRUMENTS
摘要
申请公布号
SU1406353(A1)
申请公布日期
1988.06.30
申请号
SU19874200405
申请日期
1987.02.25
申请人
VNI PK I GEOFIZICHESKIKH ISSLEDOVANIJ GEOLOGORAZVEDOCHNYKH SKVAZHIN
发明人
SAGALOVICH OLEG I,SU;YULENKOV VIKTOR A,SU;SHOKUROV VLADIMIR F,SU
分类号
E21B47/017
主分类号
E21B47/017
代理机构
代理人
主权项
地址
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