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发明名称
SYSTEM AND METHOD FOR WEAK PERSON CROSSING THE ROAD USING UBIQUITOUS
摘要
申请公布号
KR20070047442(A)
申请公布日期
2007.05.07
申请号
KR20050104181
申请日期
2005.11.02
申请人
KT CORPORATION
发明人
PARK, KWANG HO
分类号
G06K17/00;G08B21/02;G08G1/005
主分类号
G06K17/00
代理机构
代理人
主权项
地址
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