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经营范围
发明名称
UN DISPOSITIVO MAGNÉTICO.
摘要
申请公布号
ES223899(A1)
申请公布日期
1956.06.01
申请号
ES19990002238
申请日期
1955.09.08
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
(IPC1-7):H01F3/08;H03F9/00;H03K17/82
主分类号
(IPC1-7):H01F3/08
代理机构
代理人
主权项
地址
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