METHOD OF MONITORING THE POSITION OF DRILLING TOOL IN ROCK MASS,申请号SU19864086768-传众专利搜索

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发明名称	METHOD OF MONITORING THE POSITION OF DRILLING TOOL IN ROCK MASS
摘要
申请公布号	SU1481389(A1)	申请公布日期	1989.05.23
申请号	SU19864086768	申请日期	1986.07.07
申请人	NI GORNORUDNYJ INSTITUT	发明人	BELAN ALEKSANDR D,SU;FOMIN VITALIJ I,SU
分类号	E21B47/02;E21C39/00	主分类号	E21B47/02
代理机构		代理人
主权项
地址

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