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发明名称
GUIDING BOARD, GUIDING DEVICE AND GUIDING SYSTEM FOR VISUALLY HANDICAPPED PERSOMS
摘要
申请公布号
JPH10149091(A)
申请公布日期
1998.06.02
申请号
JP19960323478
申请日期
1996.11.19
申请人
KUROSAKI KAZUHIKO
发明人
KUROSAKI KAZUHIKO
分类号
G09B21/00;G09F9/00;G09F15/00;G09F27/00;(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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