ARRANGEMENT FOR TREATING FILTER-ADJOINING PORTION OF STRATUM,申请号SU19884396718-传众专利搜索

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发明名称	ARRANGEMENT FOR TREATING FILTER-ADJOINING PORTION OF STRATUM
摘要
申请公布号	SU1537798(A2)	申请公布日期	1990.01.23
申请号	SU19884396718	申请日期	1988.03.24
申请人	LIVSHITS LEONID A,SU	发明人	LIVSHITS LEONID A,SU
分类号	E21B43/24;E21B33/12;E21B43/25	主分类号	E21B43/24
代理机构		代理人
主权项
地址

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