CN209500572U - 一种简易背带式压缩氧气自救器 - Google Patents
一种简易背带式压缩氧气自救器 Download PDFInfo
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Effective date of registration: 20210806 Address after: 570100 room 205-2462, No. 181, Xingyang Avenue, Jiangdong new district, Haikou City, Hainan Province Patentee after: Hainan Huazhou Technology Co.,Ltd. Address before: 273500 No. 499, Hengfeng Road, Zoucheng City, Jining City, Shandong Province (in zhongxindian electromechanical Industrial Park) Patentee before: SHANDONG MEIANDA ELECTROMECHANICAL LIMITED BY SHARE Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20220125 |