METHOD OF DRILLING HOLES IN ROCK,申请号EP19910916180-传众专利搜索

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发明名称	METHOD OF DRILLING HOLES IN ROCK
摘要
申请公布号	EP0551299(B1)	申请公布日期	1997.01.02
申请号	EP19910916180	申请日期	1991.09.27
申请人	TAMROCK OY	发明人	RINNEMAA, HEIKKI
分类号	E21B7/02;E21B15/00;E21B15/04;E21B19/08;E21B44/00;(IPC1-7):E21B44/00	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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