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经营范围
发明名称
Rectifier tube
摘要
申请公布号
US2184709(A)
申请公布日期
1939.12.26
申请号
US19380185456
申请日期
1938.01.17
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
BRUIJNES JOHANNES;DUINKER DANIEL MARIE;MULDER JOHANNES GIJSBERTUS WILHELM
分类号
H01J17/58
主分类号
H01J17/58
代理机构
代理人
主权项
地址
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