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发明名称
Frage- und Antwort-Lernspiel
摘要
申请公布号
CH526181(A)
申请公布日期
1972.07.31
申请号
CH19700004696
申请日期
1970.03.31
申请人
HESENER,WALTER
发明人
HESENER,WALTER
分类号
A63F9/18;(IPC1-7):G09B3/06
主分类号
A63F9/18
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代理人
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地址
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