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发明名称
Umwandlungselement für eine Vorrichtung zum Aufzeichnen oder Abtasten einer rillenförmigen Tonspur
摘要
申请公布号
AT221289(B)
申请公布日期
1962.05.10
申请号
AT19590003331
申请日期
1959.05.04
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
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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