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发明名称
Anordnung zur Helligkeitssteuerung von Braunschen Hochvakuumroehren fuer Fernseh- und Tonfilmzwecke
摘要
申请公布号
DE684025(C)
申请公布日期
1940.06.20
申请号
DE1934F077583D
申请日期
1934.05.25
申请人
FERNSEH AKT.-GES.
发明人
RUSKA DR.-ING. ERNST
分类号
H01J29/52
主分类号
H01J29/52
代理机构
代理人
主权项
地址
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