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发明名称
Arrangement for automatically changing a gramophone record
摘要
申请公布号
GB644313(A)
申请公布日期
1950.10.11
申请号
GB19470002577
申请日期
1947.01.28
申请人
PETRUS ANTHONIUS DE BOER
发明人
分类号
G11B17/16
主分类号
G11B17/16
代理机构
代理人
主权项
地址
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