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发明名称
A BRAILLE-WRITING DEVICE WHICH POSSESSES OF INFORMATION PROCESSING FUNCTION
摘要
申请公布号
HK1088428(A1)
申请公布日期
2009.07.17
申请号
HK20060108670
申请日期
2006.08.04
申请人
SHENZHEN WANGLING SCIENCE AND TECHNOLOGY DEVELOPMENT CO.
发明人
YAU YIM WAI
分类号
G09B;G09B21/00;G09B21/02
主分类号
G09B
代理机构
代理人
主权项
地址
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