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发明名称
Improvements in inductance coils
摘要
申请公布号
GB496617(A)
申请公布日期
1938.12.02
申请号
GB19380000738
申请日期
1938.01.10
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01F17/04
主分类号
H01F17/04
代理机构
代理人
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