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经营范围
发明名称
Perfectionnements apportés aux procédés et appareils du genre de ceux utilisant des bandes magnétiques pour la reproduction du son, notamment pour le cinéma
摘要
申请公布号
FR1050361(A)
申请公布日期
1954.01.07
申请号
FRD1050361
申请日期
1951.10.04
申请人
发明人
PICOT MICHEL
分类号
G11B15/34
主分类号
G11B15/34
代理机构
代理人
主权项
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