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经营范围
发明名称
摘要
申请公布号
JPS53161254(U)
申请公布日期
1978.12.16
申请号
JP19770068046U
申请日期
1977.05.26
申请人
发明人
分类号
H01F7/16;H01F3/00;(IPC1-7):H01F3/00
主分类号
H01F7/16
代理机构
代理人
主权项
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