Cathode incandescente pour appareils à décharge dans le vide,申请号FRD758525-传众专利搜索

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发明名称	Cathode incandescente pour appareils à décharge dans le vide
摘要
申请公布号	FR758525(A)	申请公布日期	1934.01.18
申请号	FRD758525	申请日期	1933.07.17
申请人	BROWN, BOVERI & COMPAGNIE	发明人
分类号	H01J1/15	主分类号	H01J1/15
代理机构		代理人
主权项
地址

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