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发明名称
Verfahren, um das Verhältnis zwischen Wiedergabegeschwindigkeit und Tonhöhe von Tonaufzeichnungen zu verändern.
摘要
申请公布号
CH160485(A)
申请公布日期
1933.03.15
申请号
CHD160485
申请日期
1931.06.15
申请人
N. V. KUECHENMEISTER'S INTERNATIONALE MAATSCHAPPIJ VOOR SPREKENDE FILMS
发明人
N. V. KUECHENMEISTER'S INTERNATIONALE MAATSCHAPPIJ VOOR SPREKENDE FILMS
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