CN209800335U - 隧道风机控制系统 - Google Patents
隧道风机控制系统 Download PDFInfo
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- CN209800335U CN209800335U CN201920482210.7U CN201920482210U CN209800335U CN 209800335 U CN209800335 U CN 209800335U CN 201920482210 U CN201920482210 U CN 201920482210U CN 209800335 U CN209800335 U CN 209800335U
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- control
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CN201920482210.7U CN209800335U (zh) | 2019-04-10 | 2019-04-10 | 隧道风机控制系统 |
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CN201920482210.7U CN209800335U (zh) | 2019-04-10 | 2019-04-10 | 隧道风机控制系统 |
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CN209800335U true CN209800335U (zh) | 2019-12-17 |
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GR01 | Patent grant | ||
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Tunnel fan control system Effective date of registration: 20210608 Granted publication date: 20191217 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU REDICLOUD TECHNOLOGY Co.,Ltd. Registration number: Y2021510000096 |
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PE01 | Entry into force 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: 20230320 Granted publication date: 20191217 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU REDICLOUD TECHNOLOGY CO.,LTD. Registration number: Y2021510000096 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |