CN211903233U - 一种具有防火功能的空调通风管 - Google Patents
一种具有防火功能的空调通风管 Download PDFInfo
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- CN211903233U CN211903233U CN202020332189.5U CN202020332189U CN211903233U CN 211903233 U CN211903233 U CN 211903233U CN 202020332189 U CN202020332189 U CN 202020332189U CN 211903233 U CN211903233 U CN 211903233U
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- pipeline
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CN202020332189.5U CN211903233U (zh) | 2020-03-17 | 2020-03-17 | 一种具有防火功能的空调通风管 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: 201401 room 106, building 4, No. 6758, Daye highway, Fengxian District, Shanghai Patentee after: Shanghai Xiege Electromechanical Technology Co.,Ltd. Address before: 201401 room 106, building 4, No. 6758, Daye highway, Fengxian District, Shanghai Patentee before: SHANGHAI XIEGE AIR CONDITIONING ENGINEERING Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A type of air conditioning ventilation pipe with fire protection function Effective date of registration: 20230609 Granted publication date: 20201110 Pledgee: Bank of Beijing Limited by Share Ltd. Shanghai branch Pledgor: Shanghai Xiege Electromechanical Technology Co.,Ltd. Registration number: Y2023980043359 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |