CN214675270U - 一种壁挂式消防应急广播系统 - Google Patents
一种壁挂式消防应急广播系统 Download PDFInfo
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CN113965283A (zh) * | 2021-11-19 | 2022-01-21 | 恒业世纪安全技术有限公司 | 一种消防广播系统 |
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Cited By (1)
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CN113965283A (zh) * | 2021-11-19 | 2022-01-21 | 恒业世纪安全技术有限公司 | 一种消防广播系统 |
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Denomination of utility model: A wall mounted fire emergency broadcasting system Effective date of registration: 20220321 Granted publication date: 20211109 Pledgee: Cangzhou Bank Co.,Ltd. Qinhuangdao branch Pledgor: HENGYE CENTURY SECURITY TECHNOLOGY CO.,LTD. Registration number: Y2022980002848 |
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Date of cancellation: 20230314 Granted publication date: 20211109 Pledgee: Cangzhou Bank Co.,Ltd. Qinhuangdao branch Pledgor: HENGYE CENTURY SECURITY TECHNOLOGY CO.,LTD. Registration number: Y2022980002848 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |