Improvements in and applicable to photo-electric cell circuits,申请号GB19300015999-传众专利搜索

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发明名称	Improvements in and applicable to photo-electric cell circuits
摘要
申请公布号	GB355672(A)	申请公布日期	1931.08.24
申请号	GB19300015999	申请日期	1930.05.24
申请人	CLAUDE MARSHALL	发明人
分类号	H01J40/14	主分类号	H01J40/14
代理机构		代理人
主权项
地址

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