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发明名称
Sound recorder
摘要
申请公布号
US2576250(A)
申请公布日期
1951.11.27
申请号
US19440551304
申请日期
1944.08.26
申请人
DICTAPHONE CORPORATION
发明人
BRUBAKER GEORGE P.
分类号
G11B3/00;G11B19/265
主分类号
G11B3/00
代理机构
代理人
主权项
地址
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