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发明名称
Electric phonograph reproducer
摘要
申请公布号
US1760092(A)
申请公布日期
1930.05.27
申请号
US19260154058
申请日期
1926.12.11
申请人
THOMAS ADOLPH A
发明人
THOMAS ADOLPH A.
分类号
H04R21/04
主分类号
H04R21/04
代理机构
代理人
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