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经营范围
发明名称
Improvements in and relating to circuit arrangements for power factor regulating systems
摘要
申请公布号
GB774402(A)
申请公布日期
1957.05.08
申请号
GB19540014671
申请日期
1954.05.19
申请人
WALTER LEOPOLD STERN
发明人
分类号
H02J3/18
主分类号
H02J3/18
代理机构
代理人
主权项
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