Electrical transmission system,申请号US19370166627-传众专利搜索

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发明名称	Electrical transmission system
摘要
申请公布号	US2200073(A)	申请公布日期	1940.05.07
申请号	US19370166627	申请日期	1937.09.30
申请人	RADIO CORPORATION	发明人	BEDFORD ALDA V.
分类号	H04N5/205	主分类号	H04N5/205
代理机构		代理人
主权项
地址

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