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发明名称
Perfectionnements dans les moteurs électromagnétiques de haut-parleurs
摘要
申请公布号
FR689065(A)
申请公布日期
1930.09.02
申请号
FRD689065
申请日期
1930.01.29
申请人
IDEAL WERKE AKTIENGESELLSCHAFT FUR DRAHTLOSE TELEPHONIE
发明人
分类号
H04R11/00
主分类号
H04R11/00
代理机构
代理人
主权项
地址
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