APPARATUS FOR SEALING THE WELL ANNULUS,申请号SU19792772741-传众专利搜索

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发明名称	APPARATUS FOR SEALING THE WELL ANNULUS
摘要
申请公布号	SU927965(A1)	申请公布日期	1982.05.15
申请号	SU19792772741	申请日期	1979.05.31
申请人	SREDNEAZIAT NII PRIROD GAZA	发明人	SOKOLOV YURIJ N,SU;ALEKSANDROV ALEKSANDR A,SU;ALEKSANDROV VLADIMIR A,SU
分类号	E21B33/12;(IPC1-7):E21B33/12	主分类号	E21B33/12
代理机构		代理人
主权项
地址

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