FRONT PROJECTION SCREEN,申请号GB19800011846-传众专利搜索

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发明名称	FRONT PROJECTION SCREEN
摘要
申请公布号	GB2048514(A)	申请公布日期	1980.12.10
申请号	GB19800011846	申请日期	1980.04.10
申请人	MINNESOTA MINING & MFG CO	发明人
分类号	G03B21/60;(IPC1-7):G03B21/56	主分类号	G03B21/60
代理机构		代理人
主权项
地址

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