Improvements in or relating to optical projecting apparatus,申请号GB19370027311-传众专利搜索

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发明名称	Improvements in or relating to optical projecting apparatus
摘要
申请公布号	GB503611(A)	申请公布日期	1939.04.11
申请号	GB19370027311	申请日期	1937.10.07
申请人	NATIONAL SCREEN SERVICE LIMITED;CECIL MILTON HEPWORTH;PAUL KIMBERLEY	发明人
分类号	G03B23/12	主分类号	G03B23/12
代理机构		代理人
主权项
地址

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