CN203134161U - 整合式互动信息化教学系统 - Google Patents
整合式互动信息化教学系统 Download PDFInfo
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- CN203134161U CN203134161U CN 201220750230 CN201220750230U CN203134161U CN 203134161 U CN203134161 U CN 203134161U CN 201220750230 CN201220750230 CN 201220750230 CN 201220750230 U CN201220750230 U CN 201220750230U CN 203134161 U CN203134161 U CN 203134161U
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CN 201220750230 CN203134161U (zh) | 2012-12-31 | 2012-12-31 | 整合式互动信息化教学系统 |
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CN 201220750230 CN203134161U (zh) | 2012-12-31 | 2012-12-31 | 整合式互动信息化教学系统 |
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CN203134161U true CN203134161U (zh) | 2013-08-14 |
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CN 201220750230 Expired - Fee Related CN203134161U (zh) | 2012-12-31 | 2012-12-31 | 整合式互动信息化教学系统 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108454275A (zh) * | 2014-07-29 | 2018-08-28 | 上海易教信息科技有限公司 | 防眩光黑色透视玻璃及其生产方法及智能黑板 |
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- 2012-12-31 CN CN 201220750230 patent/CN203134161U/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108454275A (zh) * | 2014-07-29 | 2018-08-28 | 上海易教信息科技有限公司 | 防眩光黑色透视玻璃及其生产方法及智能黑板 |
CN108481955A (zh) * | 2014-07-29 | 2018-09-04 | 上海易教信息科技有限公司 | 一种防眩光黑色透视玻璃及其生产方法及智能黑板 |
CN108515792A (zh) * | 2014-07-29 | 2018-09-11 | 上海易教信息科技有限公司 | 新型智能黑板 |
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CP01 | Change in the name or title of a patent holder |
Address after: 510000 C1, building 1003, information road, Tianhe District, Guangzhou, Guangdong Patentee after: Crystal ball Information Technology Co.,Ltd. Address before: 510000 C1, building 1003, information road, Tianhe District, Guangzhou, Guangdong Patentee before: Guangzhou SJO-IT Information Technology Co.,Ltd. Address after: 510000 C1, building 1003, information road, Tianhe District, Guangzhou, Guangdong Patentee after: SHUIJINGQIU EDUCATION INFORMATION TECHNOLOGY Co.,Ltd. Address before: 510000 C1, building 1003, information road, Tianhe District, Guangzhou, Guangdong Patentee before: Crystal ball Information Technology Co.,Ltd. |
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Effective date of registration: 20210712 Granted publication date: 20130814 |
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PP01 | Preservation of patent right | ||
PP01 | Preservation of patent right |
Effective date of registration: 20210712 Granted publication date: 20130814 |
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PD01 | Discharge of preservation of patent | ||
PD01 | Discharge of preservation of patent |
Date of cancellation: 20221231 Granted publication date: 20130814 |
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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: 20130814 |