CN220342466U - 一种可拆卸式喇叭防尘装置 - Google Patents
一种可拆卸式喇叭防尘装置 Download PDFInfo
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Effective date of registration: 20240124 Address after: No. 065, Miaoqiao Village, Zhangdian Town, Tunliu District, Changzhi City, Shanxi Province Patentee after: Song Yanji Country or region after: China Address before: 239300 intersection of Jingjiu road and Qianqiu Avenue, Tianchang Economic Development Zone, Chuzhou City, Anhui Province Patentee before: Anhui Shengmate Intelligent Technology Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240318 Address after: Room 1202, Unit 2, 12th Floor, Building 7, Courtyard 1, Beiqing Road, Changping District, Beijing, 102206 Patentee after: Beijing Hongbai Yuheng Electronic Technology Co.,Ltd. Country or region after: China Address before: No. 065, Miaoqiao Village, Zhangdian Town, Tunliu District, Changzhi City, Shanxi Province Patentee before: Song Yanji Country or region before: China |
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