CN212343937U - 一种多按键门禁对讲装置 - Google Patents
一种多按键门禁对讲装置 Download PDFInfo
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Effective date of registration: 20240327 Address after: 518000, 211 Xingyue Building, Shichang Road, Taoyuan Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Hengchang Information Technology Co.,Ltd. Country or region after: China Address before: 518000 room 501-C, building 6, Sunshine Industrial Zone, sunshine 1st Road, sunshine community, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Yige Communication Technology Co.,Ltd. Country or region before: China |
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