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经营范围
发明名称
Phonograph mechanism
摘要
申请公布号
US2561466(A)
申请公布日期
1951.07.24
申请号
US19440553715
申请日期
1944.09.12
申请人
DICTAPHONE CORPORATION
发明人
GAHAGAN CARL D.
分类号
G11B3/36
主分类号
G11B3/36
代理机构
代理人
主权项
地址
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