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经营范围
发明名称
Perfectionnement aux appareils pour l'enregistrement ou la reproduction des films sonores ou analogues
摘要
申请公布号
FR807665(A)
申请公布日期
1937.01.19
申请号
FRD807665
申请日期
1936.06.13
申请人
AGA-BALTIC RADIO A. B.
发明人
分类号
G11B15/34
主分类号
G11B15/34
代理机构
代理人
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