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发明名称
Spiel zum Erlernen des Alphabets und des Lesens
摘要
申请公布号
DE1497738(A1)
申请公布日期
1969.10.30
申请号
DE19661497738
申请日期
1966.08.24
申请人
SEIBT,DR.MED. ALFRED
发明人
ALFRED SEIBT,DR.MED.
分类号
G09B17/00
主分类号
G09B17/00
代理机构
代理人
主权项
地址
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