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发明名称
IRON CORE FOR MAGNETIC EXCITING VISUAL INFORMATION DISPLAY ELEMENT OF MAGNETIC TIPPING PLATE
摘要
申请公布号
HUT53730(A)
申请公布日期
1990.11.28
申请号
HU19890001978
申请日期
1989.04.25
申请人
发明人
分类号
G09G3/04;H01F27/24;(IPC1-7):H01F27/24
主分类号
G09G3/04
代理机构
代理人
主权项
地址
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