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经营范围
发明名称
Sound recording and reproducing
摘要
申请公布号
US2096113(A)
申请公布日期
1937.10.19
申请号
US19350041189
申请日期
1935.09.19
申请人
RIPLEY CORPORATION
发明人
KIEL JOHN RIPLEY
分类号
G11B3/00
主分类号
G11B3/00
代理机构
代理人
主权项
地址
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