温州宏丰(300283.SZ)获1项欧洲发明专利证书

智通财经APP讯，温州宏丰(300283.SZ)公告，公司于近日收到由欧洲专利局颁发的1项发明专利证书，专利名称：一种长条银石墨电接触材料与焊料带材快速复合制备方法。

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