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发明名称
Elektrisches Entladungsgefaess mit Gluehkathode
摘要
申请公布号
DE887546(C)
申请公布日期
1953.08.24
申请号
DE1951S023524
申请日期
1951.06.15
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
KATZ HELMUT DR. PHIL. NAT.
分类号
H01J7/18
主分类号
H01J7/18
代理机构
代理人
主权项
地址
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