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发明名称
刻度曲线板
摘要
本实用新型提供一种绘图刻度曲线板,它的特征是曲线板上有尺寸刻度,画对称曲线时,能达到相同,并知道曲线长度。组合式曲线板用数字编号,便于选用。
申请公布号
CN85200966U
申请公布日期
1986.06.11
申请号
CN85200966
申请日期
1985.04.01
申请人
余承汉
发明人
余承汉
分类号
B43L13/20
主分类号
B43L13/20
代理机构
代理人
主权项
1、刻度曲线板是一种普通的绘图曲线板,其特征在于:(1)绘图曲线板上标出尺寸刻度;(2)绘图曲线板的正反面边缘都倒角;(3)组合式的每块曲线板用数字编号。
地址
甘肃省兰州市508信箱4分箱
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