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发明名称
Improvements in or relating to electric transformers
摘要
申请公布号
GB323873(A)
申请公布日期
1930.01.16
申请号
GB19280034759
申请日期
1928.11.26
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01F27/40
主分类号
H01F27/40
代理机构
代理人
主权项
地址
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