Improvements in or relating to methods of and apparatus for obtaining photographic images by means of invisible light rays,申请号GB19310020410-传众专利搜索

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发明名称	Improvements in or relating to methods of and apparatus for obtaining photographic images by means of invisible light rays
摘要
申请公布号	GB391100(A)	申请公布日期	1933.04.20
申请号	GB19310020410	申请日期	1931.07.16
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H01J31/50	主分类号	H01J31/50
代理机构		代理人
主权项
地址

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