DOUBLE TUBE TYPE EXCAVATING TOOL,申请号JP19950324843-传众专利搜索

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发明名称	DOUBLE TUBE TYPE EXCAVATING TOOL
摘要
申请公布号	JPH09158656(A)	申请公布日期	1997.06.17
申请号	JP19950324843	申请日期	1995.12.13
申请人	MITSUBISHI MATERIALS CORP	发明人	HAYASHI TAKESHI;SABURI AKIHIRO;TOFUN KAZUO
分类号	E21B10/26;(IPC1-7):E21B10/26	主分类号	E21B10/26
代理机构		代理人
主权项
地址

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