Improvements in high frequency amplifying circuits,申请号GB19310026959-传众专利搜索

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发明名称	Improvements in high frequency amplifying circuits
摘要
申请公布号	GB371275(A)	申请公布日期	1932.04.21
申请号	GB19310026959	申请日期	1931.09.28
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H03J3/06	主分类号	H03J3/06
代理机构		代理人
主权项
地址

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