APPARATUS FOR DRILLING HOLES UNDER PROTECTION OF CASING,申请号SU19853858236-传众专利搜索

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发明名称	APPARATUS FOR DRILLING HOLES UNDER PROTECTION OF CASING
摘要
申请公布号	SU1268711(A1)	申请公布日期	1986.11.07
申请号	SU19853858236	申请日期	1985.02.21
申请人	MO GEOLOGORAZVEDOCHNYJ I IM.SERGO ORDZHONIKIDZE	发明人	REBRIK BORIS M,SU;ARSENTEV YURIJ A,SU;LUKINSKIJ GARRISON I,SU;POLEZHAEVA ANNA P,SU
分类号	E21B7/20	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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