CN206129174U - 一种碳纤维连续抽油杆防坠落锁紧装置 - Google Patents
一种碳纤维连续抽油杆防坠落锁紧装置 Download PDFInfo
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CN109139496A (zh) * | 2018-11-01 | 2019-01-04 | 江苏东佳排灌机械有限公司 | 一种便于加工装配、组装效率高的潜水电泵 |
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CN109139496A (zh) * | 2018-11-01 | 2019-01-04 | 江苏东佳排灌机械有限公司 | 一种便于加工装配、组装效率高的潜水电泵 |
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Effective date of registration: 20180411 Address after: 163000 No. 79 Zhongxing North Street, Saertu District, Daqing, Heilongjiang. Patentee after: Daqing long he Petroleum Science and Technology Development Co., Ltd. Address before: 163000 Heilongjiang city of Daqing Province Light Industry Longfeng District Metro Patentee before: Xi Xiaoping |
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Effective date of registration: 20210331 Address after: 163000 Guangming South Street 23-2, Guangming Industrial Park, Longfeng District, Daqing City, Heilongjiang Province Patentee after: DAQING HUAYU PETROLEUM MACHINERY MANUFACTURING Co.,Ltd. Address before: 163000 79 Zhongxing North Street, Saertu District, Daqing City, Heilongjiang Province Patentee before: DAQING LONGHE PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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