An improved rear projection screen,申请号GB19340012447-传众专利搜索

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发明名称	An improved rear projection screen
摘要
申请公布号	GB427062(A)	申请公布日期	1935.04.15
申请号	GB19340012447	申请日期	1934.04.25
申请人	EDWARD GEORGE TURNER	发明人
分类号	G03B21/62	主分类号	G03B21/62
代理机构		代理人
主权项
地址

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