The National Security Intellectual Property Office granted 【Matxin】the utility model patent certificate for "a vent plug used for ventilating and stirring at the bottom of the smelting furnace and the smelting furnace containing the vent plug".
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- Time of issue:2021-12-03 19:51
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The National Security Intellectual Property Office granted 【Matxin】the utility model patent certificate for "a vent plug used for ventilating and stirring at the bottom of the smelting furnace and the smelting furnace containing the vent plug".
- Categories:news
- Author:
- Origin:
- Time of issue:2021-12-03 19:51
- Views:
On March 19, 2019, the National Security Intellectual Property Office awarded Ke Dongjie, Ke Yucheng, Ke Jinping, Chen Qun and other 6 inventors on "a vent plug for aeration and stirring at the bottom of a smelting furnace and a melting furnace containing the vent plug" "The utility model patent certificate.
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