Perfectionnements aux cellules photo-électriques,申请号FRD690673-传众专利搜索

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发明名称	Perfectionnements aux cellules photo-électriques
摘要
申请公布号	FR690673(A)	申请公布日期	1930.09.24
申请号	FRD690673	申请日期	1930.02.25
申请人	WESTINGHOUSE LAMP COMPANY	发明人
分类号	H01J40/06	主分类号	H01J40/06
代理机构		代理人
主权项
地址

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