Improvements in or relating to electric signalling equipment,申请号GB19370035566-传众专利搜索

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发明名称	Improvements in or relating to electric signalling equipment
摘要
申请公布号	GB507923(A)	申请公布日期	1939.06.22
申请号	GB19370035566	申请日期	1937.12.22
申请人	STANDARD TELEPHONES AND CABLES LIMITED;EDWARD ALBERT HENRY BOWSHER	发明人
分类号	G08B27/00	主分类号	G08B27/00
代理机构		代理人
主权项
地址

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