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发明名称
Mit Quecksilberdampf gefüllte elektrische Entladungsröhre
摘要
申请公布号
AT194982(B)
申请公布日期
1958.01.25
申请号
ATD194982
申请日期
1956.07.25
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
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主分类号
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