CN211816429U - 一种自动开合的市政道路用井盖 - Google Patents
一种自动开合的市政道路用井盖 Download PDFInfo
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- CN211816429U CN211816429U CN201921927594.5U CN201921927594U CN211816429U CN 211816429 U CN211816429 U CN 211816429U CN 201921927594 U CN201921927594 U CN 201921927594U CN 211816429 U CN211816429 U CN 211816429U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims abstract 3
- 239000004576 sand Substances 0.000 claims description 13
- 239000004575 stone Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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CN201921927594.5U CN211816429U (zh) | 2019-11-10 | 2019-11-10 | 一种自动开合的市政道路用井盖 |
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CN201921927594.5U CN211816429U (zh) | 2019-11-10 | 2019-11-10 | 一种自动开合的市政道路用井盖 |
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Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An automatic opening and closing well cover for municipal road Effective date of registration: 20201214 Granted publication date: 20201030 Pledgee: Fujian Bodong Construction Co.,Ltd. Pledgor: Huian maitian Quanli Technology Co.,Ltd. Registration number: Y2020980009247 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210316 Granted publication date: 20201030 Pledgee: Fujian Bodong Construction Co.,Ltd. Pledgor: Huian maitian Quanli Technology Co.,Ltd. Registration number: Y2020980009247 |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201030 |