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发明名称
Dispositif pour la sélection de documents classés verticalement
摘要
申请公布号
FR770923(A)
申请公布日期
1934.09.24
申请号
FRD770923
申请日期
1934.03.29
申请人
发明人
DAUBOURG ROGER
分类号
G06K21/04
主分类号
G06K21/04
代理机构
代理人
主权项
地址
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