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发明名称
Dispositif de montage de la cathode sur un pont isolant dans les tubes électroniques
摘要
申请公布号
FR1018258(A)
申请公布日期
1953.01.05
申请号
FRD1018258
申请日期
1947.07.29
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H01J19/48
主分类号
H01J19/48
代理机构
代理人
主权项
地址
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