CN212115326U - 一种光信号传输装置 - Google Patents
一种光信号传输装置 Download PDFInfo
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CN112863089A (zh) * | 2020-12-30 | 2021-05-28 | 武汉楚客科技有限公司 | 一种声光报警器的智能控制系统及方法 |
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CN112863089A (zh) * | 2020-12-30 | 2021-05-28 | 武汉楚客科技有限公司 | 一种声光报警器的智能控制系统及方法 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of utility model: An optical signal transmission device Effective date of registration: 20211220 Granted publication date: 20201208 Pledgee: Bank of China Limited by Share Ltd. Yexian County branch Pledgor: Henan Haitai Tiancheng Electronic Co.,Ltd. Registration number: Y2021980015547 |
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Date of cancellation: 20230727 Granted publication date: 20201208 Pledgee: Bank of China Limited by Share Ltd. Yexian County branch Pledgor: Henan Haitai Tiancheng Electronic Co.,Ltd. Registration number: Y2021980015547 |
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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: An optical signal transmission device Effective date of registration: 20230803 Granted publication date: 20201208 Pledgee: Bank of China Limited by Share Ltd. Yexian County branch Pledgor: Henan Haitai Tiancheng Electronic Co.,Ltd. Registration number: Y2023980050708 |