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发明名称
Tonaufzeichnungs- und Wiedergabegerät in Verbindung mit einer Telephonteilnehmerstation.
摘要
申请公布号
CH304631(A)
申请公布日期
1955.01.15
申请号
CHD304631
申请日期
1952.07.31
申请人
PHONOVA AG.
发明人
MUELLER,WILLY
分类号
G11B25/04;G11B31/00;H04M1/65
主分类号
G11B25/04
代理机构
代理人
主权项
地址
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