Perfectionnements apportés aux appareils de chauffage électrique, notamment aux fours à induction à basse ou moyenne fréquence,申请号FRD711225-传众专利搜索

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发明名称	Perfectionnements apportés aux appareils de chauffage électrique, notamment aux fours à induction à basse ou moyenne fréquence
摘要
申请公布号	FR711225(A)	申请公布日期	1931.09.05
申请号	FRD711225	申请日期	1931.01.24
申请人		发明人	DUFOUR RENE
分类号	H05B6/18	主分类号	H05B6/18
代理机构		代理人
主权项
地址

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