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经营范围
发明名称
Permanentmagnetsystem, insbesondere für dynamische Lautsprecher.
摘要
申请公布号
AT153452(B)
申请公布日期
1938.05.25
申请号
ATD153452
申请日期
1936.10.26
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
分类号
主分类号
代理机构
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