CN206134038U - 一种幼儿用娱乐型辅助摩擦力教学用具 - Google Patents
一种幼儿用娱乐型辅助摩擦力教学用具 Download PDFInfo
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- CN206134038U CN206134038U CN201620289832.4U CN201620289832U CN206134038U CN 206134038 U CN206134038 U CN 206134038U CN 201620289832 U CN201620289832 U CN 201620289832U CN 206134038 U CN206134038 U CN 206134038U
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Cited By (1)
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CN107731061A (zh) * | 2017-10-17 | 2018-02-23 | 陈玉宝 | 一种用于摩擦力实验的教学仪器 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107731061A (zh) * | 2017-10-17 | 2018-02-23 | 陈玉宝 | 一种用于摩擦力实验的教学仪器 |
CN107731061B (zh) * | 2017-10-17 | 2020-05-05 | 绍兴君合新材料科技有限公司 | 一种用于摩擦力实验的教学仪器 |
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GR01 | Patent grant | ||
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Effective date of registration: 20170620 Address after: 510440, No. 333, enterprise road, Qixing Industrial Road, Baiyun District, Guangdong, Guangzhou Patentee after: Guangdong Changyu teaching equipment Co. Ltd. Address before: 453000, No. 1, building 11, 12 Qing Lu, 48 Hongqi Road, Hongqi District, Henan, Xinxiang Patentee before: Zheng Xiaoli |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20181218 Address after: Unit 4, Unit 12, Building No. 11, 48 Daoqing Road, Hongqi Development Zone, Xinxiang City, Henan Province, 453000 Patentee after: Zheng Xiaoli Address before: 510440 Enterprise Road, Qixing Gang Industrial Avenue, Baiyun District, Guangzhou City, Guangdong Province, 333 Patentee before: Guangdong Changyu teaching equipment Co. Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20191212 Address after: 510000 room 210, floor 2, building 7, Hongtai wisdom Valley, No. 23, Sicheng Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Changyu Education Technology Co., Ltd Address before: Unit 4, Unit 12, Building No. 11, 48 Daoqing Road, Hongqi Development Zone, Xinxiang City, Henan Province, 453000 Patentee before: Zheng Xiaoli |
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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: 20170426 Termination date: 20210409 |