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经营范围
发明名称
A PHONETIC TEACHING EQUIPMENT
摘要
申请公布号
HK1122945(A2)
申请公布日期
2009.05.29
申请号
HK20090100072
申请日期
2009.01.05
申请人
发明人
分类号
G06K;G09B
主分类号
G06K
代理机构
代理人
主权项
地址
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