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发明名称
Elektrisk Udladningsrør med Fotokatode og netformede Sekundæremissionselektroder.
摘要
申请公布号
DK57591(C)
申请公布日期
1940.05.14
申请号
DKD57591
申请日期
1938.02.21
申请人
RADIOAKTIENGESELLSCHAFT D. S. LOEWE
发明人
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主分类号
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