Built-up drain,申请号GB19830011879-传众专利搜索

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发明名称	Built-up drain
摘要
申请公布号	GB2138872(A)	申请公布日期	1984.10.31
申请号	GB19830011879	申请日期	1983.04.29
申请人	* MAETA CONCRETE WORKS LTD	发明人	KOYA * SHITARA
分类号	E01C11/22;(IPC1-7):E01C11/22	主分类号	E01C11/22
代理机构		代理人
主权项
地址

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