Improvements in or relating to signalling devices,申请号GB19560022817-传众专利搜索

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发明名称	Improvements in or relating to signalling devices
摘要
申请公布号	GB808929(A)	申请公布日期	1959.02.11
申请号	GB19560022817	申请日期	1956.07.24
申请人	AUTOMATIC TELEPHONE & ELECTRIC COMPANY LIMITED	发明人	SHANKLAND JAMES
分类号	G10K1/062	主分类号	G10K1/062
代理机构		代理人
主权项
地址

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