专利检索 ap:("UNIVERSITY OF HERTFORDSHIRE") AND inv:"TRACEY, Mark Christopher, 5 The Old School" 第 1 页

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发明公开
CODED ITEMS FOR LABELLING OBJECTS 失效
标题翻译：存储器元件用于标记objecten

公开(公告)号：EP0757830A1

公开(公告)日：1997-02-12

申请号：EP95913288.0

申请日：1995-03-31

申请人： UNIVERSITY OF HERTFORDSHIRE

发明人： KAYE, Paul Henry, 1 Coopers Close , TRACEY, Mark Christopher, 5 The Old School , GORDON, John Ashley, Lynfield House

IPC分类号： G06K19 , G09F3

CPC分类号： G09F3/00 , G06K19/06009 , G06K19/063 , G06K2019/06234

摘要： A microparticle which is invisible to the naked eye and is marked with a machine readable code. A tagging compound comprising a powder, fluid or gas when mixed with one or more set or sets of microparticles of which each has a predetermined shape representative of a unique code selected from a multiplicity of such codes, such that the presence of the microparticles is undetectable to the naked eye.