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发明名称
Direction signage system
摘要
A electronic signage system for directing persons to desired locations.
申请公布号
US2007030152(A1)
申请公布日期
2007.02.08
申请号
US20050198183
申请日期
2005.08.08
申请人
XEROX CORPORATION
发明人
SPRAGUE ROBERT A.
分类号
G08B13/14
主分类号
G08B13/14
代理机构
代理人
主权项
地址
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