EARTH DRILL DEVICE,申请号JP19960270135-传众专利搜索

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发明名称	EARTH DRILL DEVICE
摘要
申请公布号	JPH10115167(A)	申请公布日期	1998.05.06
申请号	JP19960270135	申请日期	1996.10.11
申请人	RIYOUKEN KISO KK	发明人	MIZUTANI YUICHIRO
分类号	E21B3/00;(IPC1-7):E21B3/00	主分类号	E21B3/00
代理机构		代理人
主权项
地址

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