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经营范围
发明名称
Perfectionnements aux systèmes d'entraînement des films
摘要
申请公布号
FR40258(E)
申请公布日期
1932.06.08
申请号
FRD40258
申请日期
1931.05.12
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
G11B15/46
主分类号
G11B15/46
代理机构
代理人
主权项
地址
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