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发明名称
Improvements in and relating to electric discharge devices
摘要
申请公布号
GB355401(A)
申请公布日期
1931.08.27
申请号
GB19300017458
申请日期
1930.06.05
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED
发明人
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
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地址
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