METHOD AND APPARATUS FOR DRILLING,申请号EP19830104876-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR DRILLING
摘要
申请公布号	EP0095134(A3)	申请公布日期	1985.03.13
申请号	EP19830104876	申请日期	1983.05.18
申请人	WIRTH MASCHINEN- UND BOHRGERATE-FABRIK GMBH	发明人	HURTZ, GEORG;VOGTS, HEINZ-PETER
分类号	E21B7/06;E21B7/10;E21B7/28;E21B10/34;E21B17/10;(IPC1-7):E21B7/10;E21B10/32	主分类号	E21B7/06
代理机构		代理人
主权项
地址

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