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发明名称
Baandfilter til Mellemfrekvensforstærkere.
摘要
申请公布号
DK46575(C)
申请公布日期
1932.12.05
申请号
DKD46575
申请日期
1932.04.13
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
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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