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发明名称
Improvements in electrical reproducers for disc records
摘要
申请公布号
GB387974(A)
申请公布日期
1933.02.16
申请号
GB19320029159
申请日期
1932.10.18
申请人
CARL LINDSTROEM AKTIENGESELLSCHAFT
发明人
分类号
H04R11/08
主分类号
H04R11/08
代理机构
代理人
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