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经营范围
发明名称
Schwingungsgenerator.
摘要
申请公布号
AT141294(B)
申请公布日期
1935.04.10
申请号
ATD141294
申请日期
1934.04.21
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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