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发明名称
Perfectionnements aux dispositifs permettant les projections lumineuses en plein jour ou en salle éclairée
摘要
申请公布号
FR684188(A)
申请公布日期
1930.06.23
申请号
FRD684188
申请日期
1929.10.30
申请人
发明人
CREUZET ROBERT
分类号
G03B15/08
主分类号
G03B15/08
代理机构
代理人
主权项
地址
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