LOCK FOR SECURING SECTION OF DRILL RODS,申请号SU19752197357-传众专利搜索

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发明名称	LOCK FOR SECURING SECTION OF DRILL RODS
摘要
申请公布号	SU568719(A1)	申请公布日期	1977.08.15
申请号	SU19752197357	申请日期	1975.12.09
申请人	KARAGANDINSKIJ NI PK EKSPEREMENTALNYJ I "GIPROUGLEGORMASH"	发明人	USATOV GENNADIJ A,SU;ALIN TEMIRTAS N,SU;ANTONOV PETR E,SU;BELAN VIKTOR D,SU
分类号	E21B17/02;(IPC1-7):E21C15/00	主分类号	E21B17/02
代理机构		代理人
主权项
地址

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