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经营范围
发明名称
Improvements in or relating to circuit arrangements for switching energising current to electromagnets
摘要
申请公布号
GB1115382(A)
申请公布日期
1968.05.29
申请号
GB19640033503
申请日期
1964.08.17
申请人
WILLIAM HILL & SON;NORMAN & BEARD LIMITED
发明人
NORMAN HERBERT JOHN
分类号
H03K17/08
主分类号
H03K17/08
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代理人
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