Improvements in or relating to optical projection apparatus,申请号GB19550018960-传众专利搜索

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发明名称	Improvements in or relating to optical projection apparatus
摘要
申请公布号	GB774636(A)	申请公布日期	1957.05.15
申请号	GB19550018960	申请日期	1955.06.30
申请人	ERNST LEITZ GESELLSCHAFT MIT BESCHRANKTER HAFTUNG	发明人
分类号	G03B23/14	主分类号	G03B23/14
代理机构		代理人
主权项
地址

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