Frequency modulation,申请号US19450579802-传众专利搜索

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发明名称	Frequency modulation
摘要
申请公布号	US2469289(A)	申请公布日期	1949.05.03
申请号	US19450579802	申请日期	1945.02.26
申请人	RADIO CORPORATION OF AMERICA	发明人	BEARD JOSEPH G.;BORN LEO W.
分类号	H03C3/28	主分类号	H03C3/28
代理机构		代理人
主权项
地址

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