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经营范围
发明名称
Improvements in relays
摘要
申请公布号
GB626435(A)
申请公布日期
1949.07.14
申请号
GB19470023713
申请日期
1947.08.27
申请人
WESTERN ELECTRIC COMPANY
发明人
分类号
H01H50/56
主分类号
H01H50/56
代理机构
代理人
主权项
地址
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