Thermionic valve circuits,申请号GB19550013612-传众专利搜索

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发明名称	Thermionic valve circuits
摘要
申请公布号	GB804607(A)	申请公布日期	1958.11.19
申请号	GB19550013612	申请日期	1955.05.11
申请人	ALLMAENNA SVENSKA ELEKTRISKA AKTIEBOLAGET	发明人
分类号	H03F1/54	主分类号	H03F1/54
代理机构		代理人
主权项
地址

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