ROCK DRILL,申请号SU19762316874-传众专利搜索

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发明名称	ROCK DRILL
摘要
申请公布号	SU746102(A2)	申请公布日期	1980.07.07
申请号	SU19762316874	申请日期	1976.01.26
申请人	KRIVUN NIKOLAJ F,SU	发明人	KRIVUN NIKOLAJ F,SU
分类号	E21B3/00;(IPC1-7):E21C1/00	主分类号	E21B3/00
代理机构		代理人
主权项
地址

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