CASING STRING FILTER,申请号SU19833579468-传众专利搜索

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发明名称	CASING STRING FILTER
摘要
申请公布号	SU1210507(A1)	申请公布日期	1987.12.07
申请号	SU19833579468	申请日期	1983.04.15
申请人	LIVSHITS L.A.,SU	发明人	LIVSHITS L.A.,SU
分类号	E21B43/08	主分类号	E21B43/08
代理机构		代理人
主权项
地址

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