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发明名称
Tonaufnahme- oder Tonwiedergabevorrichtung
摘要
申请公布号
DE575984(C)
申请公布日期
1933.05.05
申请号
DED575984D
申请日期
1930.12.12
申请人
CARL LINDSTROEM AKT.-GES.
发明人
分类号
G11B33/02
主分类号
G11B33/02
代理机构
代理人
主权项
地址
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