Improvements in optical projection apparatus wherein the source is a hpmv electric discharge lamp,申请号GB19400014965-传众专利搜索

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发明名称	Improvements in optical projection apparatus wherein the source is a hpmv electric discharge lamp
摘要
申请公布号	GB542541(A)	申请公布日期	1942.01.14
申请号	GB19400014965	申请日期	1940.10.07
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;HERBERT WILLIAM BENJAMIN GARDINER	发明人
分类号	H01J61/82	主分类号	H01J61/82
代理机构		代理人
主权项
地址

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