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经营范围
发明名称
Perfectionnements apportés aux appareils pour la projection ou l'examen de documents photographiés ou imprimés, notamment à ceux pour la projection des films
摘要
申请公布号
FR724662(A)
申请公布日期
1932.04.30
申请号
FRD724662
申请日期
1931.08.12
申请人
COMPAGNIE FRANCAISE COD
发明人
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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