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发明名称
RECORD PLAYERS ELECTROMAGNETIC ADJUSTMENT OF STYLUS PRESSURE
摘要
申请公布号
GB2020472(A)
申请公布日期
1979.11.14
申请号
GB19790015386
申请日期
1979.05.03
申请人
SONY CORP
发明人
分类号
G11B3/085;G11B3/12;(IPC1-7):G11B3/12
主分类号
G11B3/085
代理机构
代理人
主权项
地址
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