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经营范围
发明名称
Dispositif équipé d'un tube amplificateur de puissance
摘要
申请公布号
FR1070229(A)
申请公布日期
1954.07.20
申请号
FRD1070229
申请日期
1953.01.30
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J21/02
主分类号
H01J21/02
代理机构
代理人
主权项
地址
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