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发明名称
Dispositif pour la reproduction magnétique
摘要
申请公布号
FR1061712(A)
申请公布日期
1954.04.14
申请号
FRD1061712
申请日期
1951.12.19
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
G11B5/127;G11B5/335
主分类号
G11B5/127
代理机构
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