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发明名称
Schaltung und Entladungsröhre zum Verstärken elektrischer Schwingungen.
摘要
申请公布号
AT118861(B)
申请公布日期
1930.08.25
申请号
ATD118861
申请日期
1927.01.17
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
BERNARDUS DOMINICUS HUBERTUS TELLEGEN
分类号
主分类号
代理机构
代理人
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