Carrier wave transmission systems,申请号GB19370002728-传众专利搜索

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发明名称	Carrier wave transmission systems
摘要
申请公布号	GB489636(A)	申请公布日期	1938.07.29
申请号	GB19370002728	申请日期	1937.01.29
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人
分类号	H03D3/00;H03J7/04	主分类号	H03D3/00
代理机构		代理人
主权项
地址

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