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发明名称
Montage amplificateur à haute fréquence pour bande de fréquences très large
摘要
申请公布号
FR49068(E)
申请公布日期
1938.11.07
申请号
FRD49068
申请日期
1938.01.12
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H03F1/50
主分类号
H03F1/50
代理机构
代理人
主权项
地址
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