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发明名称
Tasteninstrument mit einer Begleitakkordklaviatur
摘要
申请公布号
DE667567(C)
申请公布日期
1938.11.14
申请号
DE1936N039704D
申请日期
1936.07.29
申请人
KARL NESCHUTA;ALFRED FRIEDLAENDER
发明人
分类号
G10B3/12
主分类号
G10B3/12
代理机构
代理人
主权项
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