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发明名称
Head rest reproducer
摘要
申请公布号
US2012410(A)
申请公布日期
1935.08.27
申请号
US19320617797
申请日期
1932.06.17
申请人
RADIO CORPORATION OF AMERICA
发明人
WARD ALBERT K.
分类号
H04R1/10
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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