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经营范围
发明名称
Vorrichtung zur magnetischen Aufzeichnung und/oder Wiedergabe
摘要
申请公布号
DE1948575(A1)
申请公布日期
1971.04.01
申请号
DE19691948575
申请日期
1969.09.25
申请人
SONY CORP
发明人
WATANABE YOSHIME
分类号
G11B15/665;(IPC1-7):G11B15/60
主分类号
G11B15/665
代理机构
代理人
主权项
地址
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