DEEP-WELL DEVICE FOR CLOSING-OFF BOREHOLE,申请号SU19772549761-传众专利搜索

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发明名称	DEEP-WELL DEVICE FOR CLOSING-OFF BOREHOLE
摘要
申请公布号	SU746087(A1)	申请公布日期	1980.07.07
申请号	SU19772549761	申请日期	1977.12.01
申请人	PERMSKIJ GNI PI NEFTYANOJ PROMY;PROIZV OB "PERMNEFT"	发明人	GNEEV EVGENIJ M,SU;SIDORENKO GEORGIJ V,SU;SHARMANOV ANATOLIJ P,SU;PERVUSHIN ARKADIJ N,SU;OPALEV VLADIMIR A,SU
分类号	E21B43/00;(IPC1-7):E21B43/00	主分类号	E21B43/00
代理机构		代理人
主权项
地址

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