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发明名称
Dispositif facilitant le marquage des cartes pour machines à statistiques, en vue de leur perforation
摘要
申请公布号
FR1110472(A)
申请公布日期
1956.02.13
申请号
FRD1110472
申请日期
1954.09.04
申请人
SOCIETE NATIONALE DES CHEMINS DE FER FRANCAIS
发明人
BOREY JOSEPH-OCTAVE
分类号
G06K19/00
主分类号
G06K19/00
代理机构
代理人
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