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发明名称
Improvements in and relating to control of electric relays by means including electric discharge devices
摘要
申请公布号
GB403987(A)
申请公布日期
1934.01.01
申请号
GB19320009293
申请日期
1932.03.31
申请人
THE BRITISH THOMSON-HOUSTON COMPANY LIMITED
发明人
分类号
H01J17/04
主分类号
H01J17/04
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代理人
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