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发明名称
Improvements in or relating to loudspeakers
摘要
申请公布号
GB837381(A)
申请公布日期
1960.06.15
申请号
GB19580032213
申请日期
1958.10.09
申请人
KOLSTER-BRANDES LIMITED
发明人
CHAPMAN ROGER
分类号
H03F1/36;H04R3/00
主分类号
H03F1/36
代理机构
代理人
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