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发明名称
Electric phonograph reproducer
摘要
申请公布号
US1958386(A)
申请公布日期
1934.05.08
申请号
US19290334930
申请日期
1929.01.25
申请人
THOMAS ADOLPH A
发明人
THOMAS ADOLPH A.
分类号
H04R11/08
主分类号
H04R11/08
代理机构
代理人
主权项
地址
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