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发明名称
Improvements in and relating to electric valve circuits
摘要
申请公布号
GB488851(A)
申请公布日期
1938.07.11
申请号
GB19360030532
申请日期
1936.11.09
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED
发明人
分类号
C09K3/14;H01J13/48;H01J17/36
主分类号
C09K3/14
代理机构
代理人
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