CN220031562U - 一种教学用试卷分类存放装置 - Google Patents
一种教学用试卷分类存放装置 Download PDFInfo
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- CN220031562U CN220031562U CN202321105861.7U CN202321105861U CN220031562U CN 220031562 U CN220031562 U CN 220031562U CN 202321105861 U CN202321105861 U CN 202321105861U CN 220031562 U CN220031562 U CN 220031562U
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GR01 | Patent grant | ||
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Effective date of registration: 20231220 Address after: 404100 Village Group of Zhujiageng, Shilong Village, Sanjiao Town, Yongchuan District, Chongqing Patentee after: Yang Yongfen Patentee after: Shen Qingzhong Address before: No. 37, Caidong Group, Daying Village, Daying Town, Lai'an County, Chuzhou City, Anhui Province, 239000 Patentee before: Cai Guorun |
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Effective date of registration: 20240204 Address after: No. 15-3, 49 Xiejiawan Main Street, Jiulongpo District, Chongqing, 400050 Patentee after: Chongqing Ge'ang Education Technology Co.,Ltd. Country or region after: China Address before: 404100 Village Group of Zhujiageng, Shilong Village, Sanjiao Town, Yongchuan District, Chongqing Patentee before: Yang Yongfen Country or region before: China Patentee before: Shen Qingzhong |