Thermionic valve circuits,申请号US19430512273-传众专利搜索

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发明名称	Thermionic valve circuits
摘要
申请公布号	US2368351(A)	申请公布日期	1945.01.30
申请号	US19430512273	申请日期	1943.11.29
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人	EWEN ALFRED WHITELAW
分类号	G01R1/30	主分类号	G01R1/30
代理机构		代理人
主权项
地址

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