Improvements in electrical amplifying circuits,申请号GB19480001846-传众专利搜索

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发明名称	Improvements in electrical amplifying circuits
摘要
申请公布号	GB655167(A)	申请公布日期	1951.07.11
申请号	GB19480001846	申请日期	1948.01.21
申请人	PHILIPS ELECTRICAL LIMITED	发明人
分类号	H03F1/50;H03H11/12;H03K6/02	主分类号	H03F1/50
代理机构		代理人
主权项
地址

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