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发明名称
Frage- und Antwortspiel zum Erlernen von Zuordnungen
摘要
申请公布号
DE1905126(A1)
申请公布日期
1970.08.06
申请号
DE19691905126
申请日期
1969.02.03
申请人
NIESEL,DR.WALTER
发明人
NIESEL,DR.WALTER
分类号
G09B7/10
主分类号
G09B7/10
代理机构
代理人
主权项
地址
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