REINFORCED CONCRETE CUTTING EXCAVATION BIT,申请号JP19900116651-传众专利搜索

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发明名称	REINFORCED CONCRETE CUTTING EXCAVATION BIT
摘要
申请公布号	JPH0414568(A)	申请公布日期	1992.01.20
申请号	JP19900116651	申请日期	1990.05.02
申请人	MURAZAKI KAZUO	发明人	MURAZAKI KAZUO
分类号	E21B10/02;B28D1/14;E04G23/08	主分类号	E21B10/02
代理机构		代理人
主权项
地址

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