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发明名称
Tonehoved til et magnetisk lydoptegnings- og reproduceringsapparat.
摘要
申请公布号
DK82047(C)
申请公布日期
1957.02.11
申请号
DK19530002190
申请日期
1953.06.30
申请人
DICTAPHONE CORPORATION
发明人
分类号
主分类号
代理机构
代理人
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