Improvements relating to the optical projection of images,申请号GB19380010539-传众专利搜索

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发明名称	Improvements relating to the optical projection of images
摘要
申请公布号	GB514477(A)	申请公布日期	1939.11.09
申请号	GB19380010539	申请日期	1938.04.06
申请人	THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED;ARTHUR BOWEN;DOUGLAS FRANCIS WELCH	发明人
分类号	G03B21/13	主分类号	G03B21/13
代理机构		代理人
主权项
地址

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