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发明名称
摘要
申请公布号
DE2050312(A1)
申请公布日期
1972.04.20
申请号
DE19702050312
申请日期
1970.10.13
申请人
SIEMENS AG
发明人
分类号
H01F17/06;H01F27/34;H01F27/36;H01F30/16;(IPC1-7):H01F15/00
主分类号
H01F17/06
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