PERCUSSION DRILL AND METHOD OF CONTROLLING SUCH A DRILL,申请号GB19880029656-传众专利搜索

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发明名称	PERCUSSION DRILL AND METHOD OF CONTROLLING SUCH A DRILL
摘要
申请公布号	GB8829656(D0)	申请公布日期	1989.02.15
申请号	GB19880029656	申请日期	1988.12.20
申请人	TERRA AG FUER TIEFBAUTECHNIK	发明人
分类号	E21B7/26;E21B4/14;(IPC1-7):E21B11/02	主分类号	E21B7/26
代理机构		代理人
主权项
地址

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