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发明名称
Sprechkopf fuer elektromagnetische Tonaufzeichnung bzw. Tonwiedergabe
摘要
申请公布号
DE633879(C)
申请公布日期
1936.08.08
申请号
DE1934L085556D
申请日期
1934.03.18
申请人
C. LORENZ AKT.-GES.
发明人
分类号
G11B5/48
主分类号
G11B5/48
代理机构
代理人
主权项
地址
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