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发明名称
Correction marker for disk record dictating machines
摘要
申请公布号
US2242803(A)
申请公布日期
1941.05.20
申请号
US19390281561
申请日期
1939.06.28
申请人
THE SOUNDSCRIBER CORPORATION
发明人
THOMPSON LINCOLN
分类号
G11B27/10
主分类号
G11B27/10
代理机构
代理人
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地址
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