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发明名称
MOUNTS FOR ELECTRON TUBES HAVING FILAMENTARY CATHODES
摘要
申请公布号
CA530879(A)
申请公布日期
1956.09.25
申请号
CAD530879
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
NORVAL H. GREEN
分类号
主分类号
代理机构
代理人
主权项
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