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发明名称
Vorrichtung zur bildmaessigen Darstellung von Toenen und Tonverhaeltnissen
摘要
申请公布号
DE800520(C)
申请公布日期
1950.11.13
申请号
DE1949P053672
申请日期
1949.09.02
申请人
MEIER LEONHARD
发明人
MEIER LEONHARD
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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