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发明名称
Verfahren zum Umschreiben von Lichttonaufzeichnungen
摘要
申请公布号
DE720868(C)
申请公布日期
1942.05.18
申请号
DE1938I061283D
申请日期
1938.05.08
申请人
I.G. FARBENINDUSTRIE AG.
发明人
KUESTER DR. ALFRED
分类号
G11B23/00
主分类号
G11B23/00
代理机构
代理人
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