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发明名称
Frequenzwandler mit Negativdiode
摘要
申请公布号
AT228836(B)
申请公布日期
1963.08.12
申请号
AT19620000947
申请日期
1962.02.05
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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