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发明名称
Dispositif de commande pour appareils enregistreurs de sons
摘要
申请公布号
FR811358(A)
申请公布日期
1937.04.13
申请号
FRD811358
申请日期
1936.09.29
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
主分类号
代理机构
代理人
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