EXCAVATING CUTTER FOR CIVIL ENGINEERING EXCAVATOR,申请号JP19900092497-传众专利搜索

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发明名称	EXCAVATING CUTTER FOR CIVIL ENGINEERING EXCAVATOR
摘要
申请公布号	JPH03290587(A)	申请公布日期	1991.12.20
申请号	JP19900092497	申请日期	1990.04.06
申请人	SUMITOMO ELECTRIC IND LTD	发明人	NISHIUCHI KAZUAKI
分类号	E21B10/02;E21B17/14	主分类号	E21B10/02
代理机构		代理人
主权项
地址

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