CN204680271U - 一种杠杆原理演示装置 - Google Patents
一种杠杆原理演示装置 Download PDFInfo
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- CN204680271U CN204680271U CN201520267328.XU CN201520267328U CN204680271U CN 204680271 U CN204680271 U CN 204680271U CN 201520267328 U CN201520267328 U CN 201520267328U CN 204680271 U CN204680271 U CN 204680271U
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105608964A (zh) * | 2016-04-06 | 2016-05-25 | 王星竹 | 一种简易的物理学习用杠杆原理演示装置 |
CN108470498A (zh) * | 2018-06-20 | 2018-08-31 | 杨毅 | 一种物理教具 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105608964A (zh) * | 2016-04-06 | 2016-05-25 | 王星竹 | 一种简易的物理学习用杠杆原理演示装置 |
CN108470498A (zh) * | 2018-06-20 | 2018-08-31 | 杨毅 | 一种物理教具 |
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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 | ||
CB03 | Change of inventor or designer information |
Inventor after: Li Yangfan Inventor before: Li Yang |
|
COR | Change of bibliographic data | ||
CP01 | Change in the name or title of a patent holder |
Address after: 273500, building 3, building 1, family hospital of cement factory, Hu Hu community cement factory, Jining, Shandong, Zoucheng 202, China Patentee after: Li Yangfan Address before: 273500, building 3, building 1, family hospital of cement factory, Hu Hu community cement factory, Jining, Shandong, Zoucheng 202, China Patentee before: Li Yang |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160429 |