Improvements in or relating to optical projection apparatus,申请号GB19320029840-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	GB409300(A)	申请公布日期	1934.04.25
申请号	GB19320029840	申请日期	1932.10.25
申请人	JAMES PRIESTNALL NAYLOR;KATHERINE RUTH NAYLOR	发明人
分类号	G03B23/10	主分类号	G03B23/10
代理机构		代理人
主权项
地址

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