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发明名称
Repeating phonograph
摘要
申请公布号
US1888660(A)
申请公布日期
1932.11.22
申请号
US19280281186
申请日期
1928.05.28
申请人
FERGUSON CARL L
发明人
FERGUSON CARL L.
分类号
G11B17/04
主分类号
G11B17/04
代理机构
代理人
主权项
地址
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