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发明名称
Perfectionnements aux aiguilles pour phonographes, bras de pick-up et reproduteurs de sons
摘要
申请公布号
FR1010349(A)
申请公布日期
1952.06.10
申请号
FRD1010349
申请日期
1950.02.04
申请人
发明人
CASTELLI GUY
分类号
G11B3/48
主分类号
G11B3/48
代理机构
代理人
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