CLUTCH DEVICE OF EARTH DRILL,申请号JP19980129896-传众专利搜索

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发明名称	CLUTCH DEVICE OF EARTH DRILL
摘要
申请公布号	JPH11324548(A)	申请公布日期	1999.11.26
申请号	JP19980129896	申请日期	1998.05.13
申请人	HITACHI CONSTR MACH CO LTD	发明人	NOZAKI SATOSHI
分类号	E21B11/00;(IPC1-7):E21B11/00	主分类号	E21B11/00
代理机构		代理人
主权项
地址

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