CN217380274U - 一种密闭性强的钢筋混凝土防护门 - Google Patents
一种密闭性强的钢筋混凝土防护门 Download PDFInfo
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| CN202220377567.0U CN217380274U (zh) | 2022-02-23 | 2022-02-23 | 一种密闭性强的钢筋混凝土防护门 |
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| CN202220377567.0U CN217380274U (zh) | 2022-02-23 | 2022-02-23 | 一种密闭性强的钢筋混凝土防护门 |
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| CN217380274U true CN217380274U (zh) | 2022-09-06 |
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Effective date of registration: 20250630 Address after: 628300 Sichuan Province Guangyuan City Jiange County Yuanshan Town Tongqiao Village Group 5 No. 41 Patentee after: Huang Jinfei Country or region after: China Address before: 211100 Jiangsu Province Nanjing City Jiangning District Hushu Street Zhou Gang Qishang Road Patentee before: Jiangsu Hengjin civil air defense equipment Co.,Ltd. Country or region before: China |
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Effective date of registration: 20250707 Address after: 621000 Sichuan Province Mianyang City Science and Technology City New District Innovation Center Subterranean Square B507-76 Room J1716 Entrepreneurship Workshop Patentee after: Sichuan Hongyuan Jinfei Construction Labor Co.,Ltd. Country or region after: China Address before: 628300 Sichuan Province Guangyuan City Jiange County Yuanshan Town Tongqiao Village Group 5 No. 41 Patentee before: Huang Jinfei Country or region before: China |