Improvements in and relating to valves of the butterfly type,申请号GB19480013927-传众专利搜索

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发明名称	Improvements in and relating to valves of the butterfly type
摘要
申请公布号	GB654449(A)	申请公布日期	1951.06.20
申请号	GB19480013927	申请日期	1948.05.22
申请人	W. C. HOLMES AND COMPANY LIMITED;CLEMENT INGHAM;CHARLES COOPER	发明人
分类号	F16K1/228	主分类号	F16K1/228
代理机构		代理人
主权项
地址

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