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发明名称
Automatic marking and identification system
摘要
Automatic marking and identification system, based on the use, as a message medium, of a matrix of points physically represented by recessed imprints, which can be easily revealed by an illumination at an oblique angle. <IMAGE>
申请公布号
FR2615982(A2)
申请公布日期
1988.12.02
申请号
FR19870007439
申请日期
1987.05.25
申请人
TERRACOL CLAUDE
发明人
分类号
G06K1/12;(IPC1-7):G06K1/12;G06K9/18
主分类号
G06K1/12
代理机构
代理人
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地址
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