CN212457365U - One-way flow air return device with silencing function in fresh air system - Google Patents
One-way flow air return device with silencing function in fresh air system Download PDFInfo
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- CN212457365U CN212457365U CN202020403061.3U CN202020403061U CN212457365U CN 212457365 U CN212457365 U CN 212457365U CN 202020403061 U CN202020403061 U CN 202020403061U CN 212457365 U CN212457365 U CN 212457365U
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CN202020403061.3U CN212457365U (en) | 2020-03-26 | 2020-03-26 | One-way flow air return device with silencing function in fresh air system |
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CN202020403061.3U CN212457365U (en) | 2020-03-26 | 2020-03-26 | One-way flow air return device with silencing function in fresh air system |
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CN212457365U true CN212457365U (en) | 2021-02-02 |
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CN202020403061.3U Active CN212457365U (en) | 2020-03-26 | 2020-03-26 | One-way flow air return device with silencing function in fresh air system |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20221230 Address after: 18th Floor, Hawaii Building, 289 Yongchang Road, Heze Development Zone, Shandong Province, 274000 Patentee after: Kangzhai (Shandong) Health Building Technology Co.,Ltd. Address before: No.1021 Shuanghe Road, Mudan District, Heze City, Shandong Province Patentee before: Zhang Xuefeng |
|
TR01 | Transfer of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A one-way flow return air device with silencing function in a fresh air system Effective date of registration: 20230317 Granted publication date: 20210202 Pledgee: Heze rural commercial bank Limited by Share Ltd. Pledgor: Kangzhai (Shandong) Health Building Technology Co.,Ltd. Registration number: Y2023980035066 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |