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经营范围
发明名称
Lautstaerkeregelung fuer Radioempfaenger
摘要
申请公布号
DE577453(C)
申请公布日期
1933.05.31
申请号
DE1932R084982D
申请日期
1932.05.26
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H03G3/16
主分类号
H03G3/16
代理机构
代理人
主权项
地址
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