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发明名称
Phonographe à deux plateaux pour la continuité du son émis
摘要
申请公布号
FR687041(A)
申请公布日期
1930.08.04
申请号
FRD687041
申请日期
1929.12.20
申请人
发明人
BARELLI PIER FAUSTO
分类号
G11B17/00
主分类号
G11B17/00
代理机构
代理人
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