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经营范围
发明名称
Improvements in or relating to electro-magnetic devices
摘要
申请公布号
GB379369(A)
申请公布日期
1932.08.29
申请号
GB19310015806
申请日期
1931.05.29
申请人
JURIS FRITCSONS
发明人
分类号
H01H50/32
主分类号
H01H50/32
代理机构
代理人
主权项
地址
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