Improvements in light sources comprising electric discharge tubes,申请号GB19380013708-传众专利搜索

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发明名称	Improvements in light sources comprising electric discharge tubes
摘要
申请公布号	GB494827(A)	申请公布日期	1938.11.01
申请号	GB19380013708	申请日期	1938.05.07
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H01J61/42	主分类号	H01J61/42
代理机构		代理人
主权项
地址

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