Improvements in and relating to timing means for controlling or operating a series of variable indicating, signalling, warning or supervisory devices,申请号GB19390026580-传众专利搜索

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发明名称	Improvements in and relating to timing means for controlling or operating a series of variable indicating, signalling, warning or supervisory devices
摘要
申请公布号	GB532910(A)	申请公布日期	1941.02.03
申请号	GB19390026580	申请日期	1939.09.25
申请人	SYDNEY JAMES SMITH;TELEPHONE MANUFACTURING COMPANY LIMITED	发明人
分类号	G04C23/00;G08G1/085	主分类号	G04C23/00
代理机构		代理人
主权项
地址

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