CN216610661U - 一种用于英语教学的板书划线工具 - Google Patents
一种用于英语教学的板书划线工具 Download PDFInfo
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Wang Fengjuan Inventor after: Cui Zhiwen Inventor before: Cui Zhiwen |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220826 Address after: No. 3, Huangjiahu West Road, Hongshan District, Wuhan City, Hubei Province 430074 Patentee after: WUHAN TECHNOLOGY AND BUSINESS University Address before: 510000 No. 201, middle Yanjiang Road, Yuexiu District, Guangzhou, Guangdong Patentee before: Cui Zhiwen |
|
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: 20220527 |