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发明名称
Amplificateur à haute fréquence
摘要
申请公布号
FR693555(A)
申请公布日期
1930.11.21
申请号
FRD693555
申请日期
1930.04.08
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01F19/04
主分类号
H01F19/04
代理机构
代理人
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