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发明名称
Improvements in and relating to electric circuit controlling apparatus
摘要
申请公布号
GB308615(A)
申请公布日期
1930.03.20
申请号
GB19290009430
申请日期
1929.03.23
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED
发明人
分类号
H01H33/66
主分类号
H01H33/66
代理机构
代理人
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地址
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