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发明名称
Improvements in or relating to loudspeakers
摘要
申请公布号
GB362704(A)
申请公布日期
1931.12.10
申请号
GB19300039124
申请日期
1930.12.30
申请人
HERBERT AUGUST HEINRICH SCHUELER
发明人
分类号
H04R11/00
主分类号
H04R11/00
代理机构
代理人
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