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经营范围
发明名称
Radioempfaenger mit regulierbarer Bandbreite
摘要
申请公布号
DE576540(C)
申请公布日期
1933.05.13
申请号
DE1931R083256D
申请日期
1931.11.07
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H03H7/01
主分类号
H03H7/01
代理机构
代理人
主权项
地址
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