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发明名称
摘要
申请公布号
JPS5464921(U)
申请公布日期
1979.05.08
申请号
JP19770139614U
申请日期
1977.10.18
申请人
发明人
分类号
H01F38/42;H01F19/00;H02M7/06;(IPC1-7):H02M7/06
主分类号
H01F38/42
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代理人
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