ECRAN POUR PROJECTION PAR TRANSPARENCE,申请号BE19790194333-传众专利搜索

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发明名称	ECRAN POUR PROJECTION PAR TRANSPARENCE
摘要
申请公布号	BE875231(A1)	申请公布日期	1979.07.16
申请号	BE19790194333	申请日期	1979.03.30
申请人	A. FREEN LTD	发明人
分类号	G03B21/60;G03B21/62;(IPC1-7):G03B/;G02B/;G09F/	主分类号	G03B21/60
代理机构		代理人
主权项
地址

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