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发明名称
GRAPHICAL BRAILLE MATRIX DISPLAY
摘要
申请公布号
HU0600088(A2)
申请公布日期
2007.08.28
申请号
HU20060000088
申请日期
2006.02.06
申请人
PAPP SANDOR DAVID
发明人
PAPP SANDOR DAVID
分类号
G09B21/00
主分类号
G09B21/00
代理机构
代理人
主权项
地址
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