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发明名称
Perfectionnements aux électrophones à présélection
摘要
申请公布号
FR1413171(A)
申请公布日期
1965.10.08
申请号
FR19640986087
申请日期
1964.08.25
申请人
发明人
PHILIPPEAU PAUL
分类号
G11B19/02
主分类号
G11B19/02
代理机构
代理人
主权项
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