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27 天
伊戈尔获得发明专利授权:“12倍数绕组输出的 - 移相变压器及供 ...
证券之星消息,根据天眼查APP数据显示伊戈尔(002922)新获得一项发明专利授权,专利名为“12倍数绕组输出的 - 移相变压器及供配电系统 ...
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