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经营范围
发明名称
Circuit destiné à la correction de la caractéristique de fréquence d'appareils d'enregistrement magnétophoniques
摘要
申请公布号
FR1044538(A)
申请公布日期
1953.11.18
申请号
FRD1044538
申请日期
1951.11.07
申请人
PRODUITS PERFECTONE
发明人
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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