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发明名称
Elektrisches Entladungsgefaess mit Gluehkathode
摘要
申请公布号
DE493991(C)
申请公布日期
1930.03.15
申请号
DE1916A027783D
申请日期
1916.02.17
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
分类号
H01J21/02
主分类号
H01J21/02
代理机构
代理人
主权项
地址
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