CN212973940U - 一种智慧式闭门器 - Google Patents
一种智慧式闭门器 Download PDFInfo
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- CN212973940U CN212973940U CN202020707873.7U CN202020707873U CN212973940U CN 212973940 U CN212973940 U CN 212973940U CN 202020707873 U CN202020707873 U CN 202020707873U CN 212973940 U CN212973940 U CN 212973940U
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CN202020707873.7U CN212973940U (zh) | 2020-04-30 | 2020-04-30 | 一种智慧式闭门器 |
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CN202020707873.7U CN212973940U (zh) | 2020-04-30 | 2020-04-30 | 一种智慧式闭门器 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117706996A (zh) * | 2023-12-13 | 2024-03-15 | 广州珠江外资建筑设计院有限公司 | 一种建筑加压楼梯间防烟监控系统及方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117706996A (zh) * | 2023-12-13 | 2024-03-15 | 广州珠江外资建筑设计院有限公司 | 一种建筑加压楼梯间防烟监控系统及方法 |
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GR01 | Patent grant | ||
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TR01 | Transfer of patent right |
Effective date of registration: 20220317 Address after: 201306 2nd floor, no.979 Yunhan Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: Shanghai huinengxing Technology Development Co.,Ltd. Address before: No.777, section 4, Huafu Avenue, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu, Sichuan Province 610000 Patentee before: Wisdom Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230808 Address after: Room 102, No. 1, Xiaoshaojing Village, Guangnan Community, Qidian Street, Yangzong Lake Scenic Area, Kunming, Yunnan 652100 Patentee after: Wisdom Ltd. Address before: 201306 2nd floor, no.979 Yunhan Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: Shanghai huinengxing Technology Development Co.,Ltd. |
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TR01 | Transfer of patent right |