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发明名称
Phonographe portatif perfectionné
摘要
申请公布号
FR704207(A)
申请公布日期
1931.05.15
申请号
FRD704207
申请日期
1930.10.21
申请人
发明人
AUTRIC JACQUES
分类号
G11B25/04
主分类号
G11B25/04
代理机构
代理人
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