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发明名称
Ein- und Ausschaltvorrichtung in elektrischen Tonabnehmern
摘要
申请公布号
DE587668(C)
申请公布日期
1933.11.06
申请号
DE1931SC96089D
申请日期
1931.11.25
申请人
HERBERT SCHUELER
发明人
分类号
G11B3/14
主分类号
G11B3/14
代理机构
代理人
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