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发明名称
Elektronenstrahlroehre mit einem Eisenhohlkegel und einem Glasschirm und Verfahren zur Herstellung einer solchen Roehre
摘要
申请公布号
DE853033(C)
申请公布日期
1952.10.20
申请号
DE1950N003283
申请日期
1950.12.16
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
HAGENBERG THEODORUS
分类号
C03C27/04;H01J29/86
主分类号
C03C27/04
代理机构
代理人
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