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发明名称
Procédé pour faciliter la leoture de renseignements consignés par perforations sur une carte pour machines comptables ou statistiques utilisant des cartes perforées
摘要
申请公布号
FR909764(A)
申请公布日期
1946.05.17
申请号
FRD909764
申请日期
1944.10.23
申请人
发明人
QUENEAU JEAN-ADRIEN-GEORGES-
分类号
G06K19/08
主分类号
G06K19/08
代理机构
代理人
主权项
地址
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