CN211876293U - 一种便于安装和拆卸的空调通风管道 - Google Patents
一种便于安装和拆卸的空调通风管道 Download PDFInfo
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GR01 | Patent grant | ||
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Effective date of registration: 20220214 Address after: No.218 qianwangang Road, Huangdao District, Qingdao City, Shandong Province Patentee after: Dong Congzheng Address before: 323000 room 112, science and Innovation Park, Smart Town, No. 368, Chengbei street, Liandu District, Lishui City, Zhejiang Province Patentee before: Lishui Yian Energy Equipment Co.,Ltd. |
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Effective date of registration: 20221201 Address after: 1508, Block A, Zhongnan Jinshi International Plaza, No. 157, Jinggangshan Road, Huangdao District, Qingdao, Shandong 266000 Patentee after: Shandong Hanfeng Holding Group Co.,Ltd. Address before: No.218 qianwangang Road, Huangdao District, Qingdao City, Shandong Province Patentee before: Dong Congzheng |