CN209218477U - 一种用于校园的新风换气机监控装置 - Google Patents
一种用于校园的新风换气机监控装置 Download PDFInfo
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- CN209218477U CN209218477U CN201821689182.8U CN201821689182U CN209218477U CN 209218477 U CN209218477 U CN 209218477U CN 201821689182 U CN201821689182 U CN 201821689182U CN 209218477 U CN209218477 U CN 209218477U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 36
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CN201821689182.8U CN209218477U (zh) | 2018-10-17 | 2018-10-17 | 一种用于校园的新风换气机监控装置 |
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CN201821689182.8U CN209218477U (zh) | 2018-10-17 | 2018-10-17 | 一种用于校园的新风换气机监控装置 |
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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: No.843, Jingqi Road, Huaiyin District, Jinan City, Shandong Province Patentee after: Shandong Tongfang Jiahe Co.,Ltd. Address before: No.843, Jingqi Road, Huaiyin District, Jinan City, Shandong Province Patentee before: JINAN TONGFANG JIAHE TECHNOLOGY Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: No.843, Jingqi Road, Huaiyin District, Jinan City, Shandong Province Patentee after: Shandong Tongfang Jiahe Co.,Ltd. Address before: No.843, Jingqi Road, Huaiyin District, Jinan City, Shandong Province Patentee before: JINAN TONGFANG JIAHE TECHNOLOGY Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 |
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CF01 | Termination of patent right due to non-payment of annual fee |