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发明名称
Walzensprech- oder Diktiermaschine
摘要
申请公布号
DE645768(C)
申请公布日期
1937.06.02
申请号
DE1935D069502D
申请日期
1935.01.11
申请人
DICTAPHONE CORPORATION
发明人
分类号
G11B25/02
主分类号
G11B25/02
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代理人
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