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发明名称
Perfectionnements aux haut-parleurs électrodynamiques
摘要
申请公布号
FR793572(A)
申请公布日期
1936.01.27
申请号
FRD793572
申请日期
1935.08.08
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
分类号
H04R9/02
主分类号
H04R9/02
代理机构
代理人
主权项
地址
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