Improvements in thermionic valve amplifier circuits,申请号GB19290014700-传众专利搜索

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发明名称	Improvements in thermionic valve amplifier circuits
摘要
申请公布号	GB311817(A)	申请公布日期	1930.07.03
申请号	GB19290014700	申请日期	1928.05.10
申请人	WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY	发明人
分类号	H03F1/08;H03F1/16	主分类号	H03F1/08
代理机构		代理人
主权项
地址

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