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发明名称
Klaviatur fuer Handharmoniken
摘要
申请公布号
DE576896(C)
申请公布日期
1933.05.19
申请号
DENDATR084234D
申请日期
申请人
FREDERIC ROTTER
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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