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发明名称
Phonograph
摘要
申请公布号
US2293219(A)
申请公布日期
1942.08.18
申请号
US19410405177
申请日期
1941.08.02
申请人
MEMOVOX, INC.
发明人
RIEBER FRANK
分类号
G11B17/028
主分类号
G11B17/028
代理机构
代理人
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