Transmitters for electromagnetic communication systems,申请号US19570702953-传众专利搜索

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发明名称	Transmitters for electromagnetic communication systems
摘要
申请公布号	US2995656(A)	申请公布日期	1961.08.08
申请号	US19570702953	申请日期	1957.12.16
申请人	MULTITONE ELECTRIC COMPANY LIMITED	发明人	SNEATH OSWALD BARBER
分类号	H04M1/50;H04Q3/00	主分类号	H04M1/50
代理机构		代理人
主权项
地址

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