CN205487006U - 教学用摆线演示器 - Google Patents
教学用摆线演示器 Download PDFInfo
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- CN205487006U CN205487006U CN201620188720.XU CN201620188720U CN205487006U CN 205487006 U CN205487006 U CN 205487006U CN 201620188720 U CN201620188720 U CN 201620188720U CN 205487006 U CN205487006 U CN 205487006U
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CN201620188720.XU CN205487006U (zh) | 2016-03-05 | 2016-03-05 | 教学用摆线演示器 |
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CN201620188720.XU CN205487006U (zh) | 2016-03-05 | 2016-03-05 | 教学用摆线演示器 |
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CN205487006U true CN205487006U (zh) | 2016-08-17 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106991875A (zh) * | 2017-06-27 | 2017-07-28 | 南阳理工学院 | 一种高等数学教学用摆线演示教具 |
CN109979287A (zh) * | 2019-05-17 | 2019-07-05 | 安徽理工大学 | 一种高等数学教学用摆线演示教具 |
CN113978165A (zh) * | 2021-11-02 | 2022-01-28 | 福州外语外贸学院 | 一种大学数学教学使用的摆线演示教具 |
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2016
- 2016-03-05 CN CN201620188720.XU patent/CN205487006U/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106991875A (zh) * | 2017-06-27 | 2017-07-28 | 南阳理工学院 | 一种高等数学教学用摆线演示教具 |
CN109979287A (zh) * | 2019-05-17 | 2019-07-05 | 安徽理工大学 | 一种高等数学教学用摆线演示教具 |
CN113978165A (zh) * | 2021-11-02 | 2022-01-28 | 福州外语外贸学院 | 一种大学数学教学使用的摆线演示教具 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Li Taoran Inventor before: Zhang Zonghao |
|
CB03 | Change of inventor or designer information | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170504 Address after: 256200 No.1 middle school, class 1, class 1, Zouping County, Shandong, Binzhou Province, China Patentee after: Li Taoran Address before: 266510 School of civil engineering and architecture, Shandong University of Science and Technology, Qingdao, Shandong, 579 Bay Road, Huangdao, 2013 Patentee before: Zhang Zonghao |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170305 |
|
CF01 | Termination of patent right due to non-payment of annual fee |