DEVICE FOR SINKING AND LIFTING OF INSTRUMENTS FROM VERTICAL AND INCLINED HOLES,申请号SU19904879122-传众专利搜索

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发明名称	DEVICE FOR SINKING AND LIFTING OF INSTRUMENTS FROM VERTICAL AND INCLINED HOLES
摘要
申请公布号	RU2007555(C1)	申请公布日期	1994.02.15
申请号	SU19904879122	申请日期	1990.11.02
申请人	PSHENICHNYJ PAVEL L	发明人	PSHENICHNYJ PAVEL L
分类号	E21B47/00;E21B19/08;(IPC1-7):E21B47/00	主分类号	E21B47/00
代理机构		代理人
主权项
地址

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