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发明名称
PROJECTION INSTALLATION STRUCTURE OF BUMPY BLOCK FOR VISUAL HANDICAPPED PERSON
摘要
申请公布号
KR200175066(Y1)
申请公布日期
2000.03.15
申请号
KR19990022099U
申请日期
1999.10.14
申请人
LEE, DONG KI
发明人
LEE, DONG KI
分类号
E01C5/00;(IPC1-7):E01C5/00
主分类号
E01C5/00
代理机构
代理人
主权项
地址
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