CN214616628U - 一种气动同向开启式巷道风门 - Google Patents
一种气动同向开启式巷道风门 Download PDFInfo
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CN117266909A (zh) * | 2023-10-07 | 2023-12-22 | 中南大学 | 一种井下排风系统 |
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CN117266909A (zh) * | 2023-10-07 | 2023-12-22 | 中南大学 | 一种井下排风系统 |
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Effective date of registration: 20240201 Address after: 017000 No. 48, building a, No. 15, jilaoqing North Road, Dongsheng District, Ordos, Inner Mongolia Autonomous Region Patentee after: Ordos Chao'an Mine Equipment Technology Development Co.,Ltd. Country or region after: China Address before: 017209 Bulianta coal mine, Yijinholo banner, Ordos City, Inner Mongolia Autonomous Region Patentee before: Su Chao Country or region before: China |
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Effective date of registration: 20240418 Address after: 017000 No.1, 340 meters northeast of Binhe Avenue, Ulanmulun Town, Ejin Horo Banner, Ordos City, Inner Mongolia Autonomous Region Patentee after: Ordos Shenlun Mining Machinery Equipment Co.,Ltd. Country or region after: China Address before: 017000 No. 48, building a, No. 15, jilaoqing North Road, Dongsheng District, Ordos, Inner Mongolia Autonomous Region Patentee before: Ordos Chao'an Mine Equipment Technology Development Co.,Ltd. Country or region before: China |
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