Perfectionnements aux appareils agissant sous l'action d'ondes,申请号FRD714814-传众专利搜索

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发明名称	Perfectionnements aux appareils agissant sous l'action d'ondes
摘要
申请公布号	FR714814(A)	申请公布日期	1931.11.20
申请号	FRD714814	申请日期	1931.04.04
申请人	BRITISH RADIOSTAT CORPORATION LIMITED	发明人
分类号	H03H9/48	主分类号	H03H9/48
代理机构		代理人
主权项
地址

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