HYDRAULIC MONITOR SECTION OF DOWNHOLE EXCAVATING UNIT,申请号SU19874275321-传众专利搜索

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发明名称	HYDRAULIC MONITOR SECTION OF DOWNHOLE EXCAVATING UNIT
摘要
申请公布号	SU1469141(A1)	申请公布日期	1989.03.30
申请号	SU19874275321	申请日期	1987.05.20
申请人	MO GEOLOGORAZVEDOCHNYJ I IM.SERGO ORDZHONIKIDZE	发明人	ABRAMOV GRIGORIJ YU,SU;BABICHEV NIKOLAJ I,SU;VILMIS ALEKSANDR L,SU;SHANIN SERGEJ O,SU
分类号	E21C45/00	主分类号	E21C45/00
代理机构		代理人
主权项
地址

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