Improvements in valves or switches,申请号GB19470010429-传众专利搜索

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发明名称	Improvements in valves or switches
摘要
申请公布号	GB631893(A)	申请公布日期	1949.11.11
申请号	GB19470010429	申请日期	1947.04.18
申请人	THE H. A. WILSON COMPANY	发明人
分类号	G05D23/08	主分类号	G05D23/08
代理机构		代理人
主权项
地址

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