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发明名称
Apparatus for reproducing sound
摘要
申请公布号
US1998461(A)
申请公布日期
1935.04.23
申请号
US19300436264
申请日期
1930.03.17
申请人
KUCHER ANDREW A
发明人
KUCHER ANDREW A.
分类号
G10H3/06
主分类号
G10H3/06
代理机构
代理人
主权项
地址
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