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发明名称
ELECTROMAGNET FOR DIDACTIC PURPOSES
摘要
申请公布号
PL55188(Y1)
申请公布日期
1997.05.30
申请号
PL19930098043U
申请日期
1993.06.08
申请人
UNIWERSYTET LODZKI
发明人
BONCZAK BAZYLI;BEDNAREK STANISLAW
分类号
G09B23/18;H01F7/06;(IPC1-7):G09B23/18
主分类号
G09B23/18
代理机构
代理人
主权项
地址
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