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发明名称
Dispositif de signalisation pour fiches perforées à fentes sélectives
摘要
申请公布号
FR932262(A)
申请公布日期
1948.03.17
申请号
FRD932262
申请日期
1946.08.14
申请人
发明人
DESAUBLIAUX ROBERT-ROGER-MAURICE
分类号
G06K21/04
主分类号
G06K21/04
代理机构
代理人
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