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发明名称
Improvements in voltage relays
摘要
申请公布号
GB461199(A)
申请公布日期
1937.02.12
申请号
GB19350023390
申请日期
1935.08.20
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED
发明人
分类号
H02H3/027
主分类号
H02H3/027
代理机构
代理人
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