A new and improved valve for a pipe or main,申请号GB19570016747-传众专利搜索

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发明名称	A new and improved valve for a pipe or main
摘要
申请公布号	GB833793(A)	申请公布日期	1960.04.27
申请号	GB19570016747	申请日期	1957.05.27
申请人	ALEXANDER CAMPBELL MCPHEDRAN	发明人
分类号	F16K1/04;F16L41/06	主分类号	F16K1/04
代理机构		代理人
主权项
地址

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