CN209829331U - 矿用降尘双控喷洒闸阀结构 - Google Patents
矿用降尘双控喷洒闸阀结构 Download PDFInfo
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- CN209829331U CN209829331U CN201920211521.XU CN201920211521U CN209829331U CN 209829331 U CN209829331 U CN 209829331U CN 201920211521 U CN201920211521 U CN 201920211521U CN 209829331 U CN209829331 U CN 209829331U
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GR01 | Patent grant | ||
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CB03 | Change of inventor or designer information | ||
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Inventor after: Xue Zhongxin Inventor after: Wang Feng Inventor after: Hou Tan Inventor after: Liu Di Inventor after: Zhao Yan Inventor after: Ni Yunfeng Inventor before: Xue Zhongxin Inventor before: Wang Feng Inventor before: Hou Tan Inventor before: Liu Di Inventor before: Zhao Yan Inventor before: Ni Yunfeng |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 Termination date: 20210219 |