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发明名称
Color distinguishing card set
摘要
申请公布号
EP0601231(B1)
申请公布日期
1997.04.23
申请号
EP19920121067
申请日期
1992.12.10
申请人
YANG, CHIH-SHUN
发明人
YANG, CHIH-SHUN
分类号
G01J3/52;G09B19/00;(IPC1-7):G01J3/52
主分类号
G01J3/52
代理机构
代理人
主权项
地址
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