Filament power supply system for radio receivers,申请号US19470789961-传众专利搜索

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发明名称	Filament power supply system for radio receivers
摘要
申请公布号	US2563740(A)	申请公布日期	1951.08.07
申请号	US19470789961	申请日期	1947.12.05
申请人	PARKER LOUIS W	发明人	PARKER LOUIS W.
分类号	H04B1/16	主分类号	H04B1/16
代理机构		代理人
主权项
地址

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