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发明名称
COMPENSATION OF MAGNETIC FIELDS OF FERROMAGNETIC APPARATUS DUE TO THE EARTH MAGNETIC FIELD
摘要
申请公布号
GB1472159(A)
申请公布日期
1977.05.04
申请号
GB19750024442
申请日期
1975.06.06
申请人
FORSTER F
发明人
分类号
G01R33/02;B63G9/00;G01R33/025;H01F7/02;(IPC1-7):H05K3/00;B63G9/06
主分类号
G01R33/02
代理机构
代理人
主权项
地址
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