CN210488845U - 一种信息科技教学放映设备 - Google Patents
一种信息科技教学放映设备 Download PDFInfo
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CN112728324A (zh) * | 2020-12-29 | 2021-04-30 | 孙东杰 | 一种文科用多媒体教学设备 |
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CN112728324A (zh) * | 2020-12-29 | 2021-04-30 | 孙东杰 | 一种文科用多媒体教学设备 |
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Effective date of registration: 20210712 Address after: 572000 room 709, building 3, Nanhai Jiayuan, Nanshan Huayuan Road, Yazhou District, Sanya City, Hainan Province Patentee after: Hainan meiyang Technology Co.,Ltd. Address before: 574000 Internet innovation and entrepreneurship center, 212 Jiyang Avenue, Jiyang District, Sanya City, Hainan Province Patentee before: Headmaster Technology (Hainan) Co.,Ltd. |
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Effective date of registration: 20230822 Address after: No. 1 Yucai Road, Jiyang District, Sanya City, Hainan Province, 572000 Patentee after: Hainan Rehai Vocational Skills Training Co.,Ltd. Address before: 572000 room 709, building 3, Nanhai Jiayuan, Nanshan Huayuan Road, Yazhou District, Sanya City, Hainan Province Patentee before: Hainan meiyang Technology Co.,Ltd. |
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