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经营范围
发明名称
Sound reproducing and recording apparatus
摘要
申请公布号
US3130935(A)
申请公布日期
1964.04.28
申请号
US19630252499
申请日期
1963.01.18
申请人
JOHN ALDRIDGE PETER
发明人
ALDRIDGE PETER JOHN
分类号
G11B15/10;G11B15/22;G11B15/44;G11B15/50
主分类号
G11B15/10
代理机构
代理人
主权项
地址
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