WORKING MEMBER OF AUGER-TYPE DRILLING MACHINE,申请号SU19853878804-传众专利搜索

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发明名称	WORKING MEMBER OF AUGER-TYPE DRILLING MACHINE
摘要
申请公布号	SU1254146(A1)	申请公布日期	1986.08.30
申请号	SU19853878804	申请日期	1985.04.02
申请人	DO NI UGOLNYJ INSTITUT	发明人	LEVKOVICH PAVEL E,SU;SAVICH NIKOLAJ S,SU;LOZOVSKIJ IVAN I,SU
分类号	E21B3/00;E21C27/22	主分类号	E21B3/00
代理机构		代理人
主权项
地址

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