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经营范围
发明名称
LERNHILFE
摘要
申请公布号
AT6764(U1)
申请公布日期
2004.03.25
申请号
AT20020000770U
申请日期
2002.11.14
申请人
HADINGER HELMUT ING.
发明人
分类号
G09B5/02;(IPC1-7):G09B19/08;G09B3/02;G09B3/04
主分类号
G09B5/02
代理机构
代理人
主权项
地址
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