CN216527598U - 一种改良型教育科技演示投影装置 - Google Patents
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Address after: Room 905, 175 Tianhe North Road, Tianhe District, Guangzhou, Guangdong 510000 Patentee after: Huawei International Holdings (Guangzhou) Co.,Ltd. Address before: Room 905, 175 Tianhe North Road, Tianhe District, Guangzhou, Guangdong 510000 Patentee before: Huawei International Education Technology (Guangzhou) Co.,Ltd. |
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Effective date of registration: 20240108 Address after: 2105, 21st Floor, Building 403, Baiziwan West Lane, Chaoyang District, Beijing, 100000 Patentee after: Beijing Gaoxue Mathematical Technology Co.,Ltd. Address before: Room 905, 175 Tianhe North Road, Tianhe District, Guangzhou, Guangdong 510000 Patentee before: Huawei International Holdings (Guangzhou) Co.,Ltd. |
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