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经营范围
发明名称
Musikinstrument mit Klangplatten ode -stäben für Unterrichts
摘要
申请公布号
DE1303045(C2)
申请公布日期
1972.01.27
申请号
DE19681303045
申请日期
1968.04.25
申请人
发明人
Schmidt, Hans, Dr.
分类号
G09B15/04
主分类号
G09B15/04
代理机构
代理人
主权项
地址
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