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发明名称
ENSEMBLE DE PROTECTION DIRECTE ET DE RETROPROJECTION DE DIAPOSITIVES TRANSPORTABLE
摘要
申请公布号
FR2537737(B1)
申请公布日期
1985.08.30
申请号
FR19820020850
申请日期
1982.12.13
申请人
PRESTINOX SA
发明人
分类号
G03B21/10;G03B21/30;(IPC1-7):G03B21/30
主分类号
G03B21/10
代理机构
代理人
主权项
地址
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