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发明名称
Card reading aid
摘要
Published without abstract.
申请公布号
DE3245427(A1)
申请公布日期
1983.07.28
申请号
DE19823245427
申请日期
1982.12.08
申请人
MAIER,FRIEDRICH
发明人
MAIER,FRIEDRICH
分类号
G02B25/00;(IPC1-7):G02B27/02
主分类号
G02B25/00
代理机构
代理人
主权项
地址
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