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发明名称
Dispositif amplificateur
摘要
申请公布号
FR931662(A)
申请公布日期
1948.03.01
申请号
FRD931662
申请日期
1946.07.29
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H03G11/08
主分类号
H03G11/08
代理机构
代理人
主权项
地址
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