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发明名称
Procédé et appareillage pour la comparaison de groupes de documents
摘要
申请公布号
FR1124540(A)
申请公布日期
1956.10.12
申请号
FRD1124540
申请日期
1955.04.06
申请人
发明人
BEAUDOUIN PAUL
分类号
G03B21/00
主分类号
G03B21/00
代理机构
代理人
主权项
地址
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