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发明名称
Dispositif pour la commande d'appareils sonores, notamment d'appareils sonores à film étroit
摘要
申请公布号
FR784044(A)
申请公布日期
1935.07.20
申请号
FRD784044
申请日期
1935.01.14
申请人
KLANGFILM G.M.B.H.
发明人
分类号
G11B15/34
主分类号
G11B15/34
代理机构
代理人
主权项
地址
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