Signal translating apparatus,申请号US19360082602-传众专利搜索

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发明名称	Signal translating apparatus
摘要
申请公布号	US2155469(A)	申请公布日期	1939.04.25
申请号	US19360082602	申请日期	1936.05.29
申请人	RADIO CORPORATION OF AMERICA	发明人	BURT ALEXANDER D.
分类号	H04R11/08	主分类号	H04R11/08
代理机构		代理人
主权项
地址

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