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经营范围
发明名称
Improvements relating to phonographs
摘要
申请公布号
GB1025461(A)
申请公布日期
1966.04.06
申请号
GB19610016389
申请日期
1961.05.05
申请人
HANS CHRISTIAN HANSEN
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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