CN214507157U - 一种低成本多线消防电话系统 - Google Patents
一种低成本多线消防电话系统 Download PDFInfo
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- CN214507157U CN214507157U CN202120983215.5U CN202120983215U CN214507157U CN 214507157 U CN214507157 U CN 214507157U CN 202120983215 U CN202120983215 U CN 202120983215U CN 214507157 U CN214507157 U CN 214507157U
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CN202120983215.5U CN214507157U (zh) | 2021-05-10 | 2021-05-10 | 一种低成本多线消防电话系统 |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low cost multi line fire telephone system Effective date of registration: 20220321 Granted publication date: 20211026 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 | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230314 Granted publication date: 20211026 Pledgee: Cangzhou Bank Co.,Ltd. Qinhuangdao branch Pledgor: HENGYE CENTURY SECURITY TECHNOLOGY CO.,LTD. Registration number: Y2022980002848 |