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发明名称
Device for assisting blind persons to move on their own in the public utility building communication tracts
摘要
申请公布号
PL68664(Y1)
申请公布日期
2016.11.30
申请号
PL20130122377U
申请日期
2013.09.16
申请人
SPOŁECZNA AKADEMIA NAUK
发明人
TYBURCY EDWARD
分类号
A61H3/06;A61F9/08
主分类号
A61H3/06
代理机构
代理人
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