Perfectionnements au mode d'alimentation en énergie électrique pour charges variables, notamment dans le cas d'appareils à lampes thermo-ioniques,申请号FRD774698-传众专利搜索

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发明名称	Perfectionnements au mode d'alimentation en énergie électrique pour charges variables, notamment dans le cas d'appareils à lampes thermo-ioniques
摘要
申请公布号	FR774698(A)	申请公布日期	1934.12.11
申请号	FRD774698	申请日期	1934.06.15
申请人	ELECTRIC & MUSICAL INDUSTRIES LIMITED	发明人
分类号	H04L27/04	主分类号	H04L27/04
代理机构		代理人
主权项
地址

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