RENEWAL DEVICE FOR EXISTING DUCT,申请号JP19870017216-传众专利搜索

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发明名称	RENEWAL DEVICE FOR EXISTING DUCT
摘要
申请公布号	JPS63189595(A)	申请公布日期	1988.08.05
申请号	JP19870017216	申请日期	1987.01.29
申请人	ISEKI KAIHATSU KOKI:KK	发明人	AKESAKA TOSHIO
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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