Improvements in valves,申请号GB19280025749-传众专利搜索

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发明名称	Improvements in valves
摘要
申请公布号	GB326194(A)	申请公布日期	1930.03.07
申请号	GB19280025749	申请日期	1928.09.07
申请人	DAVID DAVIS GOLDBERG	发明人
分类号	F16K5/16	主分类号	F16K5/16
代理机构		代理人
主权项
地址

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