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发明名称
Improvements in electron discharge tubes
摘要
申请公布号
GB543499(A)
申请公布日期
1942.02.27
申请号
GB19400014028
申请日期
1940.09.09
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED
发明人
分类号
H01J31/08
主分类号
H01J31/08
代理机构
代理人
主权项
地址
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