CN207453065U - 一种可调式防沉降井盖 - Google Patents
一种可调式防沉降井盖 Download PDFInfo
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CN201721393638.1U CN207453065U (zh) | 2017-10-25 | 2017-10-25 | 一种可调式防沉降井盖 |
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CN207453065U true CN207453065U (zh) | 2018-06-05 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110387905A (zh) * | 2019-06-28 | 2019-10-29 | 褚宇为 | 一种市政公路工程用自适应防高度差井盖 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110387905A (zh) * | 2019-06-28 | 2019-10-29 | 褚宇为 | 一种市政公路工程用自适应防高度差井盖 |
CN110387905B (zh) * | 2019-06-28 | 2021-05-11 | 山东水文水环境科技有限公司 | 一种市政公路工程用自适应防高度差井盖 |
CN113006149A (zh) * | 2019-06-28 | 2021-06-22 | 褚宇为 | 一种市政公路工程用自适应防高度差井盖及方法 |
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CB03 | Change of inventor or designer information |
Inventor after: Sun Zhaowu Inventor after: Cheng Shikun Inventor after: Li Weidong Inventor after: Liang Leijun Inventor after: Liu Weihang Inventor after: Mou Zhijie Inventor before: Liang Leijun Inventor before: Mou Zhijie Inventor before: Cheng Shikun Inventor before: Sun Zhaowu Inventor before: Li Weidong Inventor before: Liu Weihang |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20201025 |
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CF01 | Termination of patent right due to non-payment of annual fee |