CN202194576U - 三刀翼金刚石钻头 - Google Patents
三刀翼金刚石钻头 Download PDFInfo
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- CN202194576U CN202194576U CN201120321230XU CN201120321230U CN202194576U CN 202194576 U CN202194576 U CN 202194576U CN 201120321230X U CN201120321230X U CN 201120321230XU CN 201120321230 U CN201120321230 U CN 201120321230U CN 202194576 U CN202194576 U CN 202194576U
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Application Number | Priority Date | Filing Date | Title |
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CN201120321230XU CN202194576U (zh) | 2011-08-30 | 2011-08-30 | 三刀翼金刚石钻头 |
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CN201120321230XU CN202194576U (zh) | 2011-08-30 | 2011-08-30 | 三刀翼金刚石钻头 |
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CN202194576U true CN202194576U (zh) | 2012-04-18 |
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CN201120321230XU Expired - Lifetime CN202194576U (zh) | 2011-08-30 | 2011-08-30 | 三刀翼金刚石钻头 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106894766A (zh) * | 2017-03-21 | 2017-06-27 | 中冶成都勘察研究总院有限公司 | 用于裂缝、地下水丰富泥岩层的抗浮锚杆施工装置 |
CN109441359A (zh) * | 2019-01-04 | 2019-03-08 | 西南石油大学 | 针对页岩的冲击物探钻头的布齿结构 |
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2011
- 2011-08-30 CN CN201120321230XU patent/CN202194576U/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106894766A (zh) * | 2017-03-21 | 2017-06-27 | 中冶成都勘察研究总院有限公司 | 用于裂缝、地下水丰富泥岩层的抗浮锚杆施工装置 |
CN109441359A (zh) * | 2019-01-04 | 2019-03-08 | 西南石油大学 | 针对页岩的冲击物探钻头的布齿结构 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20151019 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. 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: Yellow River Drilling Co., Ltd., SINOPEC Shengli Petroleum Administration Bureau |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20120418 |