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发明名称
ELECTRON DISCHARGE TUBE
摘要
申请公布号
CA328883(A)
申请公布日期
1932.12.27
申请号
CAD328883
申请日期
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN
发明人
JOHANNES GIJSBERTUS WILHELM MULDER
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主分类号
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