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发明名称
Interactive learning pen
摘要
申请公布号
USD658183(S1)
申请公布日期
2012.04.24
申请号
US20100359843F
申请日期
2010.04.15
申请人
AVERY JASON;LEAPFROG ENTERPRISES, INC.
发明人
AVERY JASON
分类号
主分类号
代理机构
代理人
主权项
地址
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