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发明名称
DEMONSTRATIVE TEACHING SET FOR TEACHING CHEMISTRY, IN PARTICULAR FOR MAKING DEMONSTRATIONS ON A MAGNETIC BOARD
摘要
申请公布号
PL301924(A1)
申请公布日期
1995.07.24
申请号
PL19940301924
申请日期
1994.01.17
申请人
BERNAS PAWEL
发明人
KAROWICZ JAROSLAW MICHAL
分类号
G09B23/24;(IPC1-7):G09B23/24
主分类号
G09B23/24
代理机构
代理人
主权项
地址
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