CN214944122U - 一种免投球锚定坐封机构 - Google Patents
一种免投球锚定坐封机构 Download PDFInfo
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- CN214944122U CN214944122U CN202120733273.2U CN202120733273U CN214944122U CN 214944122 U CN214944122 U CN 214944122U CN 202120733273 U CN202120733273 U CN 202120733273U CN 214944122 U CN214944122 U CN 214944122U
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CN202120733273.2U CN214944122U (zh) | 2021-04-12 | 2021-04-12 | 一种免投球锚定坐封机构 |
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CN202120733273.2U CN214944122U (zh) | 2021-04-12 | 2021-04-12 | 一种免投球锚定坐封机构 |
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Effective date of registration: 20230613 Address after: 225009 No.1, Wenhui West Road, Yangzhou Economic Development Zone, Jiangsu Province Patentee after: SINOPEC Group Patentee after: SINOPEC GROUP JIANGSU PETROLEUM EXPLORATION BUREAU Co.,Ltd. Patentee after: JIANGSU OILFIELD MINING DEVELOPMENT Co.,Ltd. Address before: 225009 No.1, Wenhui West Road, Yangzhou Economic Development Zone, Jiangsu Province Patentee before: JIANGSU OILFIELD MINING DEVELOPMENT Co.,Ltd. |