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发明名称
Verfahren zur Herstellung netzgeheizter Kathoden für Elektronenröhren.
摘要
申请公布号
AT123126(B)
申请公布日期
1931.06.10
申请号
ATD123126
申请日期
1929.03.18
申请人
DR. BERNHARD LOEWE
发明人
DR. BERNHARD LOEWE
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主分类号
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