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发明名称
Procédé d'enregistrement et de reproduction des sons et nouveau produit industriel en résultant
摘要
申请公布号
FR39967(E)
申请公布日期
1932.03.21
申请号
FRD39967
申请日期
1930.08.13
申请人
发明人
NUBLAT RENE-LEON-ADOLPHE
分类号
G11B11/00
主分类号
G11B11/00
代理机构
代理人
主权项
地址
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