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发明名称
多功能学生用尺
摘要
省略其它视图。
申请公布号
CN3105553D
申请公布日期
1999.03.17
申请号
CN98308279.0
申请日期
1998.05.19
申请人
姜圣华
发明人
姜圣华
分类号
19-06-D0259
主分类号
19-06-D0259
代理机构
延边朝鲜族自治州专利事务所
代理人
郭来伏
主权项
地址
133000吉林省延吉市第一高级中学数学组
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