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发明名称
摘要
申请公布号
JPH0744377(U)
申请公布日期
1995.11.14
申请号
JP19900405379U
申请日期
1990.12.11
申请人
发明人
分类号
G09B11/10;H01F7/02;(IPC1-7):G09B11/10
主分类号
G09B11/10
代理机构
代理人
主权项
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