CN209265783U - 一种数学教学用图形演示装置 - Google Patents
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CN201821094037.5U CN209265783U (zh) | 2018-07-11 | 2018-07-11 | 一种数学教学用图形演示装置 |
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CN201821094037.5U CN209265783U (zh) | 2018-07-11 | 2018-07-11 | 一种数学教学用图形演示装置 |
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CN111009173A (zh) * | 2019-12-27 | 2020-04-14 | 河北环境工程学院 | 一种传统文化教育展示板 |
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CN111009173A (zh) * | 2019-12-27 | 2020-04-14 | 河北环境工程学院 | 一种传统文化教育展示板 |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200403 Address after: 274101 No.27 Caiyuan village, Dongzhuang administrative village, nanwangdian Town, Dingtao County, Heze City, Shandong Province Co-patentee after: Sun Xiujuan Patentee after: Pei Lanying Co-patentee after: Qiu Yuxin Address before: 364300 Room 105 of 8 B Ladder in Qitangbei Wanjia District, Wuping Town, Longyan City, Fujian Province Patentee before: Longyan Wuping County Jingxing Technology Co.,Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 Termination date: 20210711 |