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发明名称
Improvements in and relating to sound recording devices
摘要
申请公布号
GB608163(A)
申请公布日期
1948.09.10
申请号
GB19460004889
申请日期
1943.05.11
申请人
SECUNDINO REY
发明人
分类号
G11B11/00
主分类号
G11B11/00
代理机构
代理人
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