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发明名称
Inductance core having low negative temperature coefficient of inductance and method of making it
摘要
申请公布号
US2231160(A)
申请公布日期
1941.02.11
申请号
US19380204926
申请日期
1938.04.18
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
GOTTSCHALT PAUL
分类号
H01F1/20
主分类号
H01F1/20
代理机构
代理人
主权项
地址
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