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发明名称
Variable self-inductance with a core of magnetic material
摘要
申请公布号
US2291780(A)
申请公布日期
1942.08.04
申请号
US19400354580
申请日期
1940.08.28
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
WITTHOFT HANS;HEINRICKE CURT
分类号
H01F21/06
主分类号
H01F21/06
代理机构
代理人
主权项
地址
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