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发明名称
Højvakuumudladningsapparat med indirekte opvarmet hul katode.
摘要
申请公布号
DK88536(C)
申请公布日期
1960.02.15
申请号
DK19540000444
申请日期
1954.02.11
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
分类号
H01J;(IPC1-7):H01J
主分类号
H01J
代理机构
代理人
主权项
地址
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