METHOD OF AND AN ARRANGEMENT FOR CONTROLLING ROCK DRILLING.,申请号GB19880005424-传众专利搜索

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发明名称	METHOD OF AND AN ARRANGEMENT FOR CONTROLLING ROCK DRILLING.
摘要
申请公布号	GB2202472(B)	申请公布日期	1990.11.21
申请号	GB19880005424	申请日期	1988.03.08
申请人	OY * TAMPELLA AB	发明人	JUHA * PIIPPONEN;OSSI * TIENARI
分类号	E21B19/24;E21B44/00	主分类号	E21B19/24
代理机构		代理人
主权项
地址

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