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经营范围
发明名称
PORTABLE READING DEVICE FOR THE BLIND
摘要
申请公布号
EP0925570(A1)
申请公布日期
1999.06.30
申请号
EP19970901114
申请日期
1997.01.17
申请人
PARIENTI, RAOUL
发明人
PARIENTI, RAOUL
分类号
G09B21/00;(IPC1-7):G09B21/00
主分类号
G09B21/00
代理机构
代理人
主权项
地址
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