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发明名称
Nouveau système de classement au moyen de fiches perforées
摘要
申请公布号
FR994985(A)
申请公布日期
1951.11.26
申请号
FRD994985
申请日期
1949.07.12
申请人
发明人
CLAVIER HENRI
分类号
G06K19/04
主分类号
G06K19/04
代理机构
代理人
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