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发明名称
Utilisation des miroirs froids et des écrans dégradés dans les systèmes de projection
摘要
申请公布号
FR1261001(A)
申请公布日期
1961.05.12
申请号
FR19600830717
申请日期
1960.06.22
申请人
发明人
BEL ROGER;GUEBIN DANIEL
分类号
G03B21/16;G03B21/20
主分类号
G03B21/16
代理机构
代理人
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地址
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