CN204941339U - 一种防制动工具 - Google Patents
一种防制动工具 Download PDFInfo
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- CN204941339U CN204941339U CN201520570451.9U CN201520570451U CN204941339U CN 204941339 U CN204941339 U CN 204941339U CN 201520570451 U CN201520570451 U CN 201520570451U CN 204941339 U CN204941339 U CN 204941339U
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CN201520570451.9U CN204941339U (zh) | 2015-07-31 | 2015-07-31 | 一种防制动工具 |
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CN204941339U true CN204941339U (zh) | 2016-01-06 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105952385A (zh) * | 2016-06-22 | 2016-09-21 | 中国石油大学(华东) | Pdc钻头减振增扭装置 |
CN106837311A (zh) * | 2017-02-21 | 2017-06-13 | 中石化石油机械股份有限公司江钻分公司 | 一种防制动工具的井下测试装置 |
CN106948771A (zh) * | 2017-03-09 | 2017-07-14 | 长江大学 | 一种螺旋式水力加压防制动工具 |
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2015
- 2015-07-31 CN CN201520570451.9U patent/CN204941339U/zh active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105952385A (zh) * | 2016-06-22 | 2016-09-21 | 中国石油大学(华东) | Pdc钻头减振增扭装置 |
CN106837311A (zh) * | 2017-02-21 | 2017-06-13 | 中石化石油机械股份有限公司江钻分公司 | 一种防制动工具的井下测试装置 |
CN106837311B (zh) * | 2017-02-21 | 2020-08-11 | 中石化江钻石油机械有限公司 | 一种防制动工具的井下测试装置 |
CN106948771A (zh) * | 2017-03-09 | 2017-07-14 | 长江大学 | 一种螺旋式水力加压防制动工具 |
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Legal Events
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C14 | Grant of patent or utility model | ||
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CP01 | Change in the name or title of a patent holder |
Address after: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: Jianghan Petroleum Drilling Bit Co., Ltd. |
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TR01 | Transfer of patent right |
Effective date of registration: 20180321 Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee after: Kingdream Sinopec Petroleum Machinery Co. Ltd. Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: SINOPEC OILFIELD EQUIPMENT CORPORATION |
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TR01 | Transfer of patent right |