CN202325326U - 一种用于垂直井内仪器和电缆的起下辅助工具 - Google Patents
一种用于垂直井内仪器和电缆的起下辅助工具 Download PDFInfo
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CN201120422479XU CN202325326U (zh) | 2011-10-31 | 2011-10-31 | 一种用于垂直井内仪器和电缆的起下辅助工具 |
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CN201120422479XU CN202325326U (zh) | 2011-10-31 | 2011-10-31 | 一种用于垂直井内仪器和电缆的起下辅助工具 |
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Cited By (1)
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CN103089179A (zh) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | 一种用于垂直井内仪器和电缆的起下辅助工具 |
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CN103089179A (zh) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | 一种用于垂直井内仪器和电缆的起下辅助工具 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
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TR01 | Transfer of patent right |
Effective date of registration: 20160519 Address after: 100728 No. 22 North Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |
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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: 20120711 Termination date: 20201031 |