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发明名称
伸缩圆规
摘要
一种伸缩圆规,两脚为可伸缩结构,可画不同尺寸的圆,节省材料,携带方便,占用空间小。
申请公布号
CN2873523Y
申请公布日期
2007.02.28
申请号
CN200620094937.0
申请日期
2006.01.06
申请人
张根
发明人
张根
分类号
B43L9/02(2006.01)
主分类号
B43L9/02(2006.01)
代理机构
代理人
主权项
1、一种伸缩圆规,包括支架(1)与脚(2),其特征是:脚(2)为可伸缩结构。
地址
441021湖北省襄樊市第七中学
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