CN220469952U - 一种具有高强度稳定性的煤矿支护 - Google Patents
一种具有高强度稳定性的煤矿支护 Download PDFInfo
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Effective date of registration: 20240603 Address after: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee after: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. Country or region after: China Address before: No. 1 Xiangwang Road, Drum Tower District, Xuzhou, Jiangsu Patentee before: XUZHOU College OF INDUSTRIAL TECHNOLOGY Country or region before: China |
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Effective date of registration: 20240624 Address after: Room 1004, Unit B, Yutian Garden, No. 266 Jingxi Road North Section, Jincheng City, Shanxi Province 048000 Patentee after: Li Jiaqi Country or region after: China Address before: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee before: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240711 Address after: 048000 Guoshan Village, Xishangzhuang Office, Jincheng City, Shanxi Province (formerly known as Nanqijian Factory Building of Brick Factory) Patentee after: Shanxi Xuyi Environmental Protection Electromechanical Equipment Co.,Ltd. Country or region after: China Address before: Room 1004, Unit B, Yutian Garden, No. 266 Jingxi Road North Section, Jincheng City, Shanxi Province 048000 Patentee before: Li Jiaqi Country or region before: China |
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