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经营范围
发明名称
Perfectionnements aux phonographes
摘要
申请公布号
FR945186(A)
申请公布日期
1949.04.27
申请号
FRD945186
申请日期
1947.04.15
申请人
THE SOUNDSCRIBER CORPORATION
发明人
分类号
G11B17/02
主分类号
G11B17/02
代理机构
代理人
主权项
地址
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