CN214449869U - 一种基于单片机的智能除尘黑板擦 - Google Patents
一种基于单片机的智能除尘黑板擦 Download PDFInfo
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Effective date of registration: 20231219 Address after: 453000, 4th and 9th floors of Yunxin Science and Technology Park, 265 meters west of Pingyuan Road and Laodong Middle Road, Hongqi District, Xinxiang City, Henan Province (entire floor) Patentee after: Henan Guanling Cloud Technology 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: 20231219 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: 225000 Huayang Xi Road, Yangzhou, Jiangsu 199 Patentee before: YANGZHOU POLYTECHNIC INSTITUTE |