CN203012338U - 交互式投影幕及推拉式黑板或推拉式绿板 - Google Patents
交互式投影幕及推拉式黑板或推拉式绿板 Download PDFInfo
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- CN203012338U CN203012338U CN 201320042601 CN201320042601U CN203012338U CN 203012338 U CN203012338 U CN 203012338U CN 201320042601 CN201320042601 CN 201320042601 CN 201320042601 U CN201320042601 U CN 201320042601U CN 203012338 U CN203012338 U CN 203012338U
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CN 201320042601 CN203012338U (zh) | 2013-01-25 | 2013-01-25 | 交互式投影幕及推拉式黑板或推拉式绿板 |
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CN 201320042601 CN203012338U (zh) | 2013-01-25 | 2013-01-25 | 交互式投影幕及推拉式黑板或推拉式绿板 |
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CN203012338U true CN203012338U (zh) | 2013-06-19 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105761555A (zh) * | 2016-02-20 | 2016-07-13 | 李泓胜 | 一种用于课堂学习交流的教学设备 |
CN108121145A (zh) * | 2018-01-02 | 2018-06-05 | 真视美视听设备(广州)有限公司 | 一种多功能卡槽画框投影幕 |
CN114690528A (zh) * | 2022-04-07 | 2022-07-01 | 深圳市海视源科技有限公司 | 一种双层电子书写幕及安装方法 |
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2013
- 2013-01-25 CN CN 201320042601 patent/CN203012338U/zh not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105761555A (zh) * | 2016-02-20 | 2016-07-13 | 李泓胜 | 一种用于课堂学习交流的教学设备 |
CN108121145A (zh) * | 2018-01-02 | 2018-06-05 | 真视美视听设备(广州)有限公司 | 一种多功能卡槽画框投影幕 |
CN114690528A (zh) * | 2022-04-07 | 2022-07-01 | 深圳市海视源科技有限公司 | 一种双层电子书写幕及安装方法 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160129 Address after: 518000, Fuyuan Building, 45 turning street, 617 street, Xin'an, Guangdong, Shenzhen, Baoan District Patentee after: SHENZHEN DONGTAIHE SCIENCE EDUCATION CO.,LTD. Address before: Nanshan District New South Road, SOHO Shenzhen city Guangdong province 518052 ha 807 Patentee before: Liao Changchun |
|
EE01 | Entry into force of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Joint Venture Science and Education Co.,Ltd. Assignor: SHENZHEN DONGTAIHE SCIENCE EDUCATION CO.,LTD. Contract record no.: 2017440020100 Denomination of utility model: Interactive projection screen and push-and-pull blackboard or push-and-pull green board Granted publication date: 20130619 License type: Exclusive License Record date: 20171215 |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20130619 |