REPLACING METHOD FOR BURIED PIPE,申请号JP19800016547-传众专利搜索

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发明名称	REPLACING METHOD FOR BURIED PIPE
摘要
申请公布号	JPS56115424(A)	申请公布日期	1981.09.10
申请号	JP19800016547	申请日期	1980.02.15
申请人	NIPPON TELEGRAPH & TELEPHONE	发明人	YAMAGUCHI KIYOTO;TARUMI KUNIHIRO;YAMAMOTO HIROSHI;SHINDOU TAMIO
分类号	E21D9/06	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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