METHOD OF LOCATING SEAL FAILURE IN CASING COLUMNS,申请号SU19772479931-传众专利搜索

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发明名称	METHOD OF LOCATING SEAL FAILURE IN CASING COLUMNS
摘要
申请公布号	SU621865(A1)	申请公布日期	1978.08.30
申请号	SU19772479931	申请日期	1977.04.26
申请人	VNII NEFTEPROMYSLOVOJ GEOFIZIKI	发明人	GUFRANOV MARAT GALEEVICH,SU;BUKIN IGOR IVANOVICH,SU;SITDYKOV GENA AKHMETOVICH,SU
分类号	E21B33/10;E21B47/117;(IPC1-7):E21B47/10	主分类号	E21B33/10
代理机构		代理人
主权项
地址

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