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经营范围
发明名称
Circuits discriminateurs d'amplitude
摘要
申请公布号
FR1023982(A)
申请公布日期
1953.03.26
申请号
FRD1023982
申请日期
1950.08.17
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H04N5/08;H04N5/53
主分类号
H04N5/08
代理机构
代理人
主权项
地址
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