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发明名称
Vorrichtung mit einer im Betrieb Sekundärelektronen emittierenden elektrischen Entladungsröhre.
摘要
申请公布号
CH192718(A)
申请公布日期
1937.08.31
申请号
CHD192718
申请日期
1936.09.24
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
GLOEILAMPENFABRIEKEN N. V. PHILIPS'
分类号
主分类号
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代理人
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