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发明名称
OPTICAL MARK READER
摘要
申请公布号
JPH03237578(A)
申请公布日期
1991.10.23
申请号
JP19900034391
申请日期
1990.02.14
申请人
NEC CORP
发明人
TAKAHASHI YUSUKE
分类号
G06K7/00
主分类号
G06K7/00
代理机构
代理人
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