Improvements relating to rain-water pipes,申请号GB19350017850-传众专利搜索

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发明名称	Improvements relating to rain-water pipes
摘要
申请公布号	GB447582(A)	申请公布日期	1936.05.21
申请号	GB19350017850	申请日期	1935.06.21
申请人	DOUGLAS SHARP	发明人
分类号	E04D13/08	主分类号	E04D13/08
代理机构		代理人
主权项
地址

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