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经营范围
发明名称
Portable mobility aid for visually impaired persons
摘要
申请公布号
EP1396247(B1)
申请公布日期
2005.12.07
申请号
EP20030019442
申请日期
2003.08.28
申请人
GROOTEN, HUBERT
发明人
GROOTEN, HUBERT
分类号
A61H3/06;G01S15/88;G01S17/93;(IPC1-7):A61H3/06
主分类号
A61H3/06
代理机构
代理人
主权项
地址
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