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经营范围
发明名称
Procédé et dispositif pour la projection d'images d'aspect variable
摘要
申请公布号
FR839065(A)
申请公布日期
1939.03.23
申请号
FRD839065
申请日期
1937.12.02
申请人
SOCIETE ANONYME HOLOPHANE
发明人
GREBEL GEORGETTE
分类号
G03B21/60
主分类号
G03B21/60
代理机构
代理人
主权项
地址
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