CN204827214U - 一种传动轴防掉装置 - Google Patents
一种传动轴防掉装置 Download PDFInfo
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- CN204827214U CN204827214U CN201520570364.3U CN201520570364U CN204827214U CN 204827214 U CN204827214 U CN 204827214U CN 201520570364 U CN201520570364 U CN 201520570364U CN 204827214 U CN204827214 U CN 204827214U
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CN201520570364.3U CN204827214U (zh) | 2015-07-31 | 2015-07-31 | 一种传动轴防掉装置 |
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CN201520570364.3U CN204827214U (zh) | 2015-07-31 | 2015-07-31 | 一种传动轴防掉装置 |
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CN204827214U true CN204827214U (zh) | 2015-12-02 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109025831A (zh) * | 2018-09-11 | 2018-12-18 | 中国石油大学(北京) | 基于射流技术的混合动力pdc钻头 |
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- 2015-07-31 CN CN201520570364.3U patent/CN204827214U/zh active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109025831A (zh) * | 2018-09-11 | 2018-12-18 | 中国石油大学(北京) | 基于射流技术的混合动力pdc钻头 |
CN109025831B (zh) * | 2018-09-11 | 2020-03-13 | 中国石油大学(北京) | 基于射流技术的混合动力pdc钻头 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
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 | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180314 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 |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20191227 Address after: 100020 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: China Petrochemical Co., Ltd. Address before: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Co-patentee before: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee before: Kingdream Sinopec Petroleum Machinery Co. Ltd. |