THERMIONIC VALVE ARRANGEMENT,申请号CAD383819-传众专利搜索

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发明名称	THERMIONIC VALVE ARRANGEMENT
摘要
申请公布号	CA383819(A)	申请公布日期	1939.09.05
申请号	CAD383819	申请日期
申请人	CANADIAN MARCONI COMPANY	发明人	NOEL MEYER RUST
分类号		主分类号
代理机构		代理人
主权项
地址

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