DEVICE FOR CONNECTING PIPE STRING TO PACKER,申请号SU19792732857-传众专利搜索

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发明名称	DEVICE FOR CONNECTING PIPE STRING TO PACKER
摘要
申请公布号	SU857434(A1)	申请公布日期	1981.08.23
申请号	SU19792732857	申请日期	1979.03.06
申请人	OSOBOE K BYURO PO PROEKTIROVANIYU NEFTEGAZODOBYVAYUSHCHIKH MASHIN OBORUDOVANIYA	发明人	EFENDIEV OKTAJ I,SU;YUSIFOV BORIS YU,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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