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发明名称
Montage destiné à l'amplification d'un certain nombre d'oscillations électriques
摘要
申请公布号
FR903970(A)
申请公布日期
1945.10.23
申请号
FRD903970
申请日期
1944.05.04
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H04J1/14
主分类号
H04J1/14
代理机构
代理人
主权项
地址
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