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经营范围
发明名称
Improvements in and relating to electric relay circuits
摘要
申请公布号
GB419006(A)
申请公布日期
1934.11.05
申请号
GB19330018048
申请日期
1933.06.24
申请人
WESTON ELECTRICAL INSTRUMENT CORPORATION
发明人
分类号
H02J9/06
主分类号
H02J9/06
代理机构
代理人
主权项
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