BACKING OF TUNNEL,申请号JP19910163808-传众专利搜索

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发明名称	BACKING OF TUNNEL
摘要
申请公布号	JPH0579291(A)	申请公布日期	1993.03.30
申请号	JP19910163808	申请日期	1991.06.07
申请人	MITSUI CONSTR CO LTD	发明人	USUI TATSUO;UOZUMI MASATAKA;NAKAI SAKAE
分类号	E21D11/00	主分类号	E21D11/00
代理机构		代理人
主权项
地址

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