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发明名称
PLAN OF A TOWN - TOWN GUIDE IN THE FORM AVAILABLE FOR TACTUAL PERCEPTION
摘要
申请公布号
PL322476(A1)
申请公布日期
1999.04.12
申请号
PL19970322476
申请日期
1997.10.06
申请人
LOREK SYLWIA
发明人
LOREK SYLWIA
分类号
G09B29/12;(IPC1-7):G09B29/12
主分类号
G09B29/12
代理机构
代理人
主权项
地址
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