CENTRALIZER FOR PIPE STRING IN BOREHOLE,申请号SU19864169304-传众专利搜索

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发明名称	CENTRALIZER FOR PIPE STRING IN BOREHOLE
摘要
申请公布号	SU1435748(A1)	申请公布日期	1988.11.07
申请号	SU19864169304	申请日期	1986.12.24
申请人	KRASNODARSKIJ O ZAVOD "NEFTEMASHREMONT"	发明人	IVANOV NIKOLAJ G,SU
分类号	E21B17/10	主分类号	E21B17/10
代理机构		代理人
主权项
地址

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