CN208789363U - 一种新型教学用自动擦黑板装置 - Google Patents
一种新型教学用自动擦黑板装置 Download PDFInfo
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- CN208789363U CN208789363U CN201820514152.7U CN201820514152U CN208789363U CN 208789363 U CN208789363 U CN 208789363U CN 201820514152 U CN201820514152 U CN 201820514152U CN 208789363 U CN208789363 U CN 208789363U
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CN201820514152.7U CN208789363U (zh) | 2018-04-12 | 2018-04-12 | 一种新型教学用自动擦黑板装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111845157A (zh) * | 2020-07-27 | 2020-10-30 | 韶关学院 | 一种新型教学黑板 |
CN112233266A (zh) * | 2020-10-19 | 2021-01-15 | 郑州旅游职业学院 | 一种思政教学用人员管理装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111845157A (zh) * | 2020-07-27 | 2020-10-30 | 韶关学院 | 一种新型教学黑板 |
CN112233266A (zh) * | 2020-10-19 | 2021-01-15 | 郑州旅游职业学院 | 一种思政教学用人员管理装置 |
CN112233266B (zh) * | 2020-10-19 | 2022-05-31 | 山东师慧文化传媒有限公司 | 一种思政教学用人员管理装置 |
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Effective date of registration: 20210528 Address after: 545000 2nd floor, 12 shift building, No.1 Machang Road, Liubei District, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: Liuzhou Yunsheng Technology Information Consulting Co.,Ltd. Address before: 311800 Wangjia Lake 107, Huan Dong Street, Zhuji, Shaoxing, Zhejiang Patentee before: Guo Hao |
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Effective date of registration: 20210611 Address after: 545000 no.6-3, unit 2, building 5, Changhong century, 278 Pingshan Avenue, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: Liuzhou BOLUO Education Consulting Co.,Ltd. Address before: 545000 2nd floor, 12 shift building, No.1 Machang Road, Liubei District, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee before: Liuzhou Yunsheng Technology Information Consulting Co.,Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190426 |
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CF01 | Termination of patent right due to non-payment of annual fee |