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发明名称
Improvements in ultra high frequency electron discharge devices
摘要
申请公布号
GB548918(A)
申请公布日期
1942.10.29
申请号
GB19410006351
申请日期
1941.05.16
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
分类号
H01J25/04
主分类号
H01J25/04
代理机构
代理人
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