CULVERT PIPE COUPLING,申请号GB19860022897-传众专利搜索

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发明名称	CULVERT PIPE COUPLING
摘要
申请公布号	GB8622897(D0)	申请公布日期	1986.10.29
申请号	GB19860022897	申请日期	1986.09.23
申请人	BIG 'O' DRAIN TILE CO LTD	发明人
分类号	E02B11/00;F16L25/00	主分类号	E02B11/00
代理机构		代理人
主权项
地址

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