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经营范围
发明名称
Improvements in and relating to time delay relays
摘要
申请公布号
GB496641(A)
申请公布日期
1938.12.02
申请号
GB19380021812
申请日期
1938.07.22
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED
发明人
分类号
H03K17/288
主分类号
H03K17/288
代理机构
代理人
主权项
地址
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