CN215647202U - 一种大学多媒体教学教育用外放装置 - Google Patents
一种大学多媒体教学教育用外放装置 Download PDFInfo
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Effective date of registration: 20230818 Address after: Room 12, 21st Floor, Building A, Wuhan Optics Valley International Chamber of Commerce, No. 2-2 Guandongyuan Road, Donghu High tech Development Zone, Wuhan City, Hubei Province, 430000 Patentee after: Hubei Jimu Science and Trade Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20230818 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: No.56 Pengcheng Avenue, Zhengdong New District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU RAILWAY VOCATIONAL & TECHNICAL College |
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