CN208744190U - 一种钛合金薄壁密封支架内圆上环槽车用工装 - Google Patents
一种钛合金薄壁密封支架内圆上环槽车用工装 Download PDFInfo
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CN113231844A (zh) * | 2021-04-16 | 2021-08-10 | 北京精密机电控制设备研究所 | 一种薄壁大圆环钛合金零件的加工方法 |
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CN113231844A (zh) * | 2021-04-16 | 2021-08-10 | 北京精密机电控制设备研究所 | 一种薄壁大圆环钛合金零件的加工方法 |
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Effective date of registration: 20201228 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee before: Baoji Oilfield Machinery Co.,Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210615 |