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经营范围
发明名称
Procédé et système de modulation
摘要
申请公布号
FR781611(A)
申请公布日期
1935.05.18
申请号
FRD781611
申请日期
1934.11.21
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H03C3/16
主分类号
H03C3/16
代理机构
代理人
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地址
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