DEVICE FOR SEALING WELLS,申请号SU19884410993-传众专利搜索

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发明名称	DEVICE FOR SEALING WELLS
摘要
申请公布号	SU1548466(A1)	申请公布日期	1990.03.07
申请号	SU19884410993	申请日期	1988.04.15
申请人	VNII GORNOJ GEOMEKHANIKI MARK	发明人	NIMETS ANANIJ I,SU;KRYLOV BORIS S,SU;LINETSKIJ ALEKSANDR P,SU;RABOTA EDUARD N,SU
分类号	E21B21/015;E21B33/03;E21F5/00	主分类号	E21B21/015
代理机构		代理人
主权项
地址

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