EXCAVATING METHOD AND ITS DEVICE,申请号JP19790159090-传众专利搜索

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发明名称	EXCAVATING METHOD AND ITS DEVICE
摘要
申请公布号	JPS5681795(A)	申请公布日期	1981.07.04
申请号	JP19790159090	申请日期	1979.12.10
申请人	ICHIKAWA SEINI	发明人	ICHIKAWA SEINI
分类号	E21D9/06;E21D9/08	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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