北交所上市公司华洋赛车新增专利信息授权：“船型开关寿命测试机构”

七印授权

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2024-09-17 14:27:25

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原本认证

https://www.yuanben.io/article/49322da6-b5e0-4046-9e07-3b3191f56e56

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