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发明名称
Perfectionnements relatifs aux phonographes à magasin
摘要
申请公布号
FR672774(A)
申请公布日期
1930.01.07
申请号
FRD672774
申请日期
1929.04.06
申请人
SYMPHONY GRAMOPHONE & RADIO (FOREIGN) LIMITED
发明人
分类号
主分类号
代理机构
代理人
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