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发明名称
Système permettant de repérer les lignes d'un texte imprimé ou autre en vue d'en faciliter la lecture
摘要
申请公布号
FR1144338(A)
申请公布日期
1957.10.11
申请号
FRD1144338
申请日期
1956.02.06
申请人
发明人
METADIER PAUL
分类号
B42D9/00
主分类号
B42D9/00
代理机构
代理人
主权项
地址
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