CN214118229U - 一种煤矿开采用防尘通风装置 - Google Patents
一种煤矿开采用防尘通风装置 Download PDFInfo
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- CN214118229U CN214118229U CN202022092212.0U CN202022092212U CN214118229U CN 214118229 U CN214118229 U CN 214118229U CN 202022092212 U CN202022092212 U CN 202022092212U CN 214118229 U CN214118229 U CN 214118229U
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Effective date of registration: 20220527 Address after: 037000 An'an Yuan Ming Yuan, Yungang District, Datong City, Shanxi Province Patentee after: Liu Lei Patentee after: Jiang Zhilei Patentee after: Li Sheng Address before: 034000 Jingyuan South Road Xinguo Xiacun Road Dongshan West Chuandilong Coal Mine Machinery Equipment Co.,Ltd., Yuanping City, Xinzhou City, Shanxi Province Patentee before: Chen Tengfei |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210903 |
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CF01 | Termination of patent right due to non-payment of annual fee |