A fluid flow switching device,申请号GB20020008764-传众专利搜索

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发明名称	A fluid flow switching device
摘要
申请公布号	GB0208764(D0)	申请公布日期	2002.05.29
申请号	GB20020008764	申请日期	2002.04.17
申请人	RUFF PUP LIMITED	发明人
分类号	E21B21/10;E21B23/00	主分类号	E21B21/10
代理机构		代理人
主权项
地址

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