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发明名称
圆柱体切面演示器
摘要
圆柱体切面演示器为教学工具。
申请公布号
CN301218233S
申请公布日期
2010.05.19
申请号
CN200930156063.6
申请日期
2009.09.30
申请人
新昌县南瑞实验学校
发明人
张佳龄
分类号
19-07
主分类号
19-07
代理机构
代理人
主权项
地址
312500 浙江省新昌县七星街道七星新区1号
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