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发明名称
Magnetic recording apparatus
摘要
申请公布号
US2751438(A)
申请公布日期
1956.06.19
申请号
US19550497839
申请日期
1955.03.30
申请人
RADIO CORPORATION OF AMERICA
发明人
BAER JOHN S.
分类号
G11B15/10;G11B15/62
主分类号
G11B15/10
代理机构
代理人
主权项
地址
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