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发明名称
Haut-parleur
摘要
申请公布号
FR690965(A)
申请公布日期
1930.09.29
申请号
FRD690965
申请日期
1930.03.01
申请人
发明人
AUDIGIER VICTOR-CHARLES-MAURI
分类号
H04R1/34
主分类号
H04R1/34
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