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发明名称
Improvements in or relating to loud-speaker magnet assemblies
摘要
申请公布号
GB499830(A)
申请公布日期
1939.01.30
申请号
GB19370020963
申请日期
1937.07.29
申请人
ROBERT BOSCH AKTIENGESELLSCHAFT
发明人
分类号
H04R9/02
主分类号
H04R9/02
代理机构
代理人
主权项
地址
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