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经营范围
发明名称
Sound reproducing apparatus
摘要
申请公布号
US2007484(A)
申请公布日期
1935.07.09
申请号
US19340719320
申请日期
1934.04.06
申请人
THE MAGNAVOX COMPANY
发明人
TOLERTON RAY E.
分类号
H04R9/04
主分类号
H04R9/04
代理机构
代理人
主权项
地址
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