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发明名称
换芯铅笔
摘要
后视图与主视图对称,省略后视图。
申请公布号
CN300908847D
申请公布日期
2009.04.15
申请号
CN200830003077.X
申请日期
2008.01.26
申请人
何汉中
发明人
何汉中
分类号
19-06
主分类号
19-06
代理机构
代理人
主权项
地址
224300江苏省射阳县合德镇香檀三巷8号
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