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经营范围
发明名称
A device for avoiding the influence of magnetic interfering fields on arc dischargesin arc rectifiers
摘要
申请公布号
GB788663(A)
申请公布日期
1958.01.08
申请号
GB19540028629
申请日期
1954.10.05
申请人
LICENTIA PATENT-VERWALTUNGS-G.M.B.H.
发明人
分类号
H01J13/20
主分类号
H01J13/20
代理机构
代理人
主权项
地址
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