CN212177148U - 对称马蹄形装配式混凝土隧道 - Google Patents
对称马蹄形装配式混凝土隧道 Download PDFInfo
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CN111101971A (zh) * | 2020-02-27 | 2020-05-05 | 张延年 | 对称马蹄形装配式混凝土隧道 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111101971A (zh) * | 2020-02-27 | 2020-05-05 | 张延年 | 对称马蹄形装配式混凝土隧道 |
CN111101971B (zh) * | 2020-02-27 | 2024-06-18 | 张延年 | 对称马蹄形装配式混凝土隧道 |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Wang Shenyu Inventor after: Wang Tieyuan Inventor after: Yan Mingcheng Inventor after: Zhu Zhenguo Inventor after: Yu Yang Inventor after: Li Zhijun Inventor after: Wang Hongyu Inventor after: Chen Zhiyan Inventor after: Du Songyan Inventor after: Dong Ning Inventor after: Li Qiqi Inventor after: Zhang Yannian Inventor after: Chen Hao Inventor after: Wang Fengdan Inventor after: Liu Bainan Inventor after: Zhang Wenjie Inventor after: Zhang Weifeng Inventor after: Cui Changqing Inventor after: Hai Hong Inventor after: Wang Ting Inventor after: Zhang Yuyu Inventor after: Kang Nan Inventor after: Gu Xiaowei Inventor before: Zhang Yannian Inventor before: Li Zhijun Inventor before: Chen Zhiyan Inventor before: Du Songyan Inventor before: Dong Ning Inventor before: Li Qiqi Inventor before: Chen Hao Inventor before: Liu Bainan Inventor before: Zhang Wenjie Inventor before: Cui Changqing Inventor before: Hai Hong Inventor before: Wang Ting Inventor before: Zhang Yuyu Inventor before: Kang Nan Inventor before: Wang Tieyuan Inventor before: Yan Mingcheng Inventor before: Yu Yang |
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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: 20201218 |