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发明名称
多用数学教学仪
摘要
1.仰视图与俯视图对称,省略仰视图;2.产品可沿x-x线对折。
申请公布号
CN87301321S
申请公布日期
1988.10.10
申请号
CN87301321
申请日期
1987.12.08
申请人
王志明
发明人
王志明
分类号
19-07-T0089
主分类号
19-07-T0089
代理机构
岳阳市专利事务所
代理人
龚正初
主权项
地址
湖南省岳阳市岳阳师范学校
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