MANUAL EXCAVATION SHIELD METHOD BASED ON PRECEDING COMPRESSED AIR,申请号JP19950308544-传众专利搜索

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发明名称	MANUAL EXCAVATION SHIELD METHOD BASED ON PRECEDING COMPRESSED AIR
摘要
申请公布号	JPH09125875(A)	申请公布日期	1997.05.13
申请号	JP19950308544	申请日期	1995.11.02
申请人	FUJITA CORP	发明人	MATSUMOTO KENICHI
分类号	E21D9/06;(IPC1-7):E21D9/06	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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