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发明名称
DIDACTIC AID IN THE FORM OF LARGE-SCALE ILLUSTRATION PANELS
摘要
申请公布号
PL58369(Y1)
申请公布日期
2001.01.31
申请号
PL19960104800U
申请日期
1996.06.03
申请人
BERNAS PAWEL
发明人
分类号
G09B1/02;G09B25/00;G09F21/02;(IPC1-7):G09B1/02
主分类号
G09B1/02
代理机构
代理人
主权项
地址
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