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发明名称
Disque phonographique perfectionné
摘要
申请公布号
FR1290949(A)
申请公布日期
1962.04.20
申请号
FR19610854893
申请日期
1961.03.08
申请人
发明人
AUDREN HENRI RENE
分类号
G11B3/70
主分类号
G11B3/70
代理机构
代理人
主权项
地址
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