LIGHT SENSITIVE ELECTRON DISCHARGE DEVICE,申请号CAD388239-传众专利搜索

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发明名称	LIGHT SENSITIVE ELECTRON DISCHARGE DEVICE
摘要
申请公布号	CA388239(A)	申请公布日期	1940.04.23
申请号	CAD388239	申请日期
申请人	N.V. PHILIPS GLOEILAMPENFABRIEKEN	发明人	FRANS MICHEL PENNING;MARTEN CORNELIS TEVES
分类号		主分类号
代理机构		代理人
主权项
地址

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