Improvements in modulating and demodulating apparatus for a.c. signalling systems,申请号GB19340009166-传众专利搜索

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发明名称	Improvements in modulating and demodulating apparatus for a.c. signalling systems
摘要
申请公布号	GB435201(A)	申请公布日期	1935.09.17
申请号	GB19340009166	申请日期	1934.03.23
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;EDGAR PHILIP LAWRENCE WESTELL	发明人
分类号	H03C1/58	主分类号	H03C1/58
代理机构		代理人
主权项
地址

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