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发明名称
Mechanical pencil
摘要
申请公布号
USD672815(S1)
申请公布日期
2012.12.18
申请号
US201129401713F
申请日期
2011.09.14
申请人
LI BIN;BEIFA GROUP CO., LTD.
发明人
LI BIN
分类号
主分类号
代理机构
代理人
主权项
地址
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