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发明名称
Elektromagnetisches Lichtsteuergeraet fuer Lichttonaufzeichnungen
摘要
申请公布号
DE642657(C)
申请公布日期
1937.03.12
申请号
DE1932T041535D
申请日期
1932.10.20
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
SCHWARZ KARL;GLASS PAUL
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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