CN208750097U - 一种家庭煤气泄漏检测报警及控制装置 - Google Patents
一种家庭煤气泄漏检测报警及控制装置 Download PDFInfo
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CN111199633A (zh) * | 2020-01-14 | 2020-05-26 | 四川轻化工大学 | 一种家用煤气泄漏检测系统 |
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CN111199633A (zh) * | 2020-01-14 | 2020-05-26 | 四川轻化工大学 | 一种家用煤气泄漏检测系统 |
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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 | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A domestic gas leakage detection alarm and control device Effective date of registration: 20210722 Granted publication date: 20190416 Pledgee: Bank of China Limited by Share Ltd. Nanjing Xuanwu sub branch Pledgor: NANJING HAOYIYUAN INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2021980006580 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Date of cancellation: 20220905 Granted publication date: 20190416 Pledgee: Bank of China Limited by Share Ltd. Nanjing Xuanwu sub branch Pledgor: NANJING HAOYIYUAN INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2021980006580 |