SHAFT EXCAVATING MACHINE,申请号JP19970095520-传众专利搜索

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发明名称	SHAFT EXCAVATING MACHINE
摘要
申请公布号	JPH10292763(A)	申请公布日期	1998.11.04
申请号	JP19970095520	申请日期	1997.04.14
申请人	MITSUBISHI HEAVY IND LTD	发明人	OKUMOTO KAZUNOBU;KURODA KAZUNARI
分类号	E21B7/20;E21D1/06;(IPC1-7):E21B7/20	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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