CN202661965U - 光学识别无线教学笔 - Google Patents
光学识别无线教学笔 Download PDFInfo
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- CN202661965U CN202661965U CN 201220199087 CN201220199087U CN202661965U CN 202661965 U CN202661965 U CN 202661965U CN 201220199087 CN201220199087 CN 201220199087 CN 201220199087 U CN201220199087 U CN 201220199087U CN 202661965 U CN202661965 U CN 202661965U
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CN 201220199087 CN202661965U (zh) | 2012-05-05 | 2012-05-05 | 光学识别无线教学笔 |
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CN 201220199087 CN202661965U (zh) | 2012-05-05 | 2012-05-05 | 光学识别无线教学笔 |
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CN202661965U true CN202661965U (zh) | 2013-01-09 |
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CN 201220199087 Expired - Lifetime CN202661965U (zh) | 2012-05-05 | 2012-05-05 | 光学识别无线教学笔 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102682637A (zh) * | 2012-05-05 | 2012-09-19 | 山东长征教育科技有限公司 | 全方位交互式有线教学系统 |
CN103035134A (zh) * | 2012-12-10 | 2013-04-10 | 张肃 | 一种图像点读播放系统及方法 |
CN103353800A (zh) * | 2013-07-10 | 2013-10-16 | 深圳市天杰电子有限公司 | 一种鼠标 |
CN106020514A (zh) * | 2016-05-31 | 2016-10-12 | 广东能龙教育股份有限公司 | 一种电子粉笔及其数据处理方法 |
CN107398884A (zh) * | 2017-08-05 | 2017-11-28 | 李良杰 | 远程笔 |
CN107767734A (zh) * | 2017-10-31 | 2018-03-06 | 无锡新人居科贸有限公司 | 一种激光翻页笔 |
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2012
- 2012-05-05 CN CN 201220199087 patent/CN202661965U/zh not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102682637A (zh) * | 2012-05-05 | 2012-09-19 | 山东长征教育科技有限公司 | 全方位交互式有线教学系统 |
CN103035134A (zh) * | 2012-12-10 | 2013-04-10 | 张肃 | 一种图像点读播放系统及方法 |
CN103353800A (zh) * | 2013-07-10 | 2013-10-16 | 深圳市天杰电子有限公司 | 一种鼠标 |
CN106020514A (zh) * | 2016-05-31 | 2016-10-12 | 广东能龙教育股份有限公司 | 一种电子粉笔及其数据处理方法 |
CN107398884A (zh) * | 2017-08-05 | 2017-11-28 | 李良杰 | 远程笔 |
CN107767734A (zh) * | 2017-10-31 | 2018-03-06 | 无锡新人居科贸有限公司 | 一种激光翻页笔 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: SHANDONG CHANGZHENG EDUCATIONAL TECHNOLOGY CO., LT Free format text: FORMER NAME: SHANDONG CHANGZHENG EDUCATION + TECHNOLOGY CO., LTD. |
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CP01 | Change in the name or title of a patent holder |
Address after: 255086 long march Education Industrial Zone, North Road, development zone, Zibo hi tech Zone, Shandong Patentee after: Shandong Changzheng Education Technology Co., Ltd. Address before: 255086 long march Education Industrial Zone, North Road, development zone, Zibo hi tech Zone, Shandong Patentee before: Shandong Changzheng Education Technology Co., Ltd. |
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CX01 | Expiry of patent term |
Granted publication date: 20130109 |
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CX01 | Expiry of patent term |