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发明名称
一种笔芯
摘要
本发明的笔芯,包括带有笔尖的芯管,其特殊之处在于:笔尖通过螺纹连接在笔芯上。本发明的有益效果是,可以替换笔尖,使好用的笔尖得到反复使用,提高了利用率,节约了原材料。
申请公布号
CN101462436A
申请公布日期
2009.06.24
申请号
CN200710115421.9
申请日期
2007.12.18
申请人
徐爽
发明人
徐爽
分类号
B43K7/00(2006.01)I
主分类号
B43K7/00(2006.01)I
代理机构
代理人
主权项
1. 一种笔芯,包括带有笔尖的芯管,其特征在于:笔尖通过螺纹连接在笔芯上。
地址
250001山东省济南市市中区经八路6号
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