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发明名称
Perfectionnements aux haut-parleurs électrodynamiques
摘要
申请公布号
FR59536(E)
申请公布日期
1954.06.28
申请号
FRD59536
申请日期
1948.10.21
申请人
SOCIETE AUDAX
发明人
分类号
H04R9/02
主分类号
H04R9/02
代理机构
代理人
主权项
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