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发明名称
Loudspeaker and circuit therefor
摘要
申请公布号
GB339205(A)
申请公布日期
1930.12.04
申请号
GB19300006053
申请日期
1930.02.24
申请人
FARRAND INDUCTOR CORPORATION
发明人
分类号
H04R3/08
主分类号
H04R3/08
代理机构
代理人
主权项
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