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发明名称
Appareil portatif ou de poche pour enregistrer et reproduire la parole et les sons en général
摘要
申请公布号
FR771396(A)
申请公布日期
1934.10.06
申请号
FRD771396
申请日期
1933.07.03
申请人
发明人
LAMARTINE MAURICE
分类号
G11B5/00
主分类号
G11B5/00
代理机构
代理人
主权项
地址
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