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发明名称
孔距画圆多用尺
摘要
其它视图省略。该尺可利用尺中数个小孔,用两支笔,以一孔为圆心绘出不同直径的圆。尺中七排孔可标出不同正方形、长方形、菱形及多边形的顶点。并可利用其绘出电子衍射斑点图谱。利用箭头孔可方便地绘出箭头。
申请公布号
CN86300933S
申请公布日期
1987.10.10
申请号
CN86300933
申请日期
1986.11.20
申请人
迟仲玉;边琪;迟靖
发明人
迟仲玉;边琪;迟靖
分类号
19-06-R0303
主分类号
19-06-R0303
代理机构
代理人
主权项
地址
天津大学分析中心
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