CN207610802U - 一种具有峰值显示功能的弹簧测力计 - Google Patents
一种具有峰值显示功能的弹簧测力计 Download PDFInfo
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Cited By (1)
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CN107749222A (zh) * | 2017-12-15 | 2018-03-02 | 胡国领 | 一种最大静摩擦力演示仪 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107749222A (zh) * | 2017-12-15 | 2018-03-02 | 胡国领 | 一种最大静摩擦力演示仪 |
CN107749222B (zh) * | 2017-12-15 | 2024-04-16 | 胡国领 | 一种最大静摩擦力演示仪 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Hu Guoling Inventor after: Zhang Yifan Inventor before: Hu Guoling |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180709 Address after: 476000 No. 216, Shen Huo Avenue, Liang Yuan, Shangqiu, Henan Co-patentee after: Zhang Yifan Patentee after: Hu Guoling Address before: 476000 No. 216, Shen Huo Avenue, Liang Yuan, Shangqiu, Henan Patentee before: Hu Guoling |
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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: 20180713 Termination date: 20201215 |