CN216122804U - 一种教学用智能演讲话筒 - Google Patents
一种教学用智能演讲话筒 Download PDFInfo
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Effective date of registration: 20231123 Address after: No. 26 Machang Lane, Nanchang District, Wuxi City, Jiangsu Province, 214000 Patentee after: Chen Yanli Patentee after: Zhang Weibo Address before: 518104 No. 2, Xinhe Avenue, Gonghe community, Shajing street, Bao'an District, Shenzhen, Guangdong 2055-2088 Patentee before: Shenzhen Zhengyi Business Co.,Ltd. |
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Effective date of registration: 20231127 Address after: Room 221-4, Floor 2, Building 3, No. 9, the Taihu Lake East Road, Xinbei District, Changzhou City, Jiangsu Province, 213000 Patentee after: Jiangsu Youpu Information Technology Co.,Ltd. Address before: No. 26 Machang Lane, Nanchang District, Wuxi City, Jiangsu Province, 214000 Patentee before: Chen Yanli Patentee before: Zhang Weibo |
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Address after: Room 702, Floor 7, No. 9-1, the Taihu Lake East Road, Xinbei District, Changzhou City, Jiangsu Province, 213000 Patentee after: Jiangsu Youpu Information Technology Co.,Ltd. Country or region after: China Address before: Room 221-4, Floor 2, Building 3, No. 9, the Taihu Lake East Road, Xinbei District, Changzhou City, Jiangsu Province, 213000 Patentee before: Jiangsu Youpu Information Technology Co.,Ltd. Country or region before: China |
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