Improvements in sources of light for optical projection apparatus,申请号GB19370026802-传众专利搜索

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发明名称	Improvements in sources of light for optical projection apparatus
摘要
申请公布号	GB503331(A)	申请公布日期	1939.04.04
申请号	GB19370026802	申请日期	1937.10.04
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;VICTOR JAMES FRANCIS;JOHN MALYON WALDRAM	发明人
分类号	G03B21/20	主分类号	G03B21/20
代理机构		代理人
主权项
地址

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