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经营范围
发明名称
Improvements in and relating to electric discharge devices
摘要
申请公布号
GB397107(A)
申请公布日期
1933.08.08
申请号
GB19320000423
申请日期
1932.01.06
申请人
THE BRITISH THOMSON-HOUSTON COMPANY LIMITED
发明人
分类号
H01J17/49
主分类号
H01J17/49
代理机构
代理人
主权项
地址
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