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发明名称
Lichtquelle fuer Lichttonaufzeichnungen
摘要
申请公布号
DE617979(C)
申请公布日期
1935.08.30
申请号
DE1931K119078D
申请日期
1931.02.24
申请人
KODAK AKT.-GES.
发明人
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
主权项
地址
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