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中车长春轨道客车取得用于动车组网络通信网段通道测试装置专利 ...
金融界2025年1月29日消息,国家知识产权局信息显示,中车长春轨道客车股份有限公司取得一项名为“一种用于动车组网络通信网段通道测试装置”的专利,授权公告号 CN 222394112 U,申请日期为2024年3月。
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