CN202731777U - 一种圆环式抽油杆扶正器 - Google Patents
一种圆环式抽油杆扶正器 Download PDFInfo
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- CN202731777U CN202731777U CN201220445279.0U CN201220445279U CN202731777U CN 202731777 U CN202731777 U CN 202731777U CN 201220445279 U CN201220445279 U CN 201220445279U CN 202731777 U CN202731777 U CN 202731777U
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CN201220445279.0U CN202731777U (zh) | 2012-09-04 | 2012-09-04 | 一种圆环式抽油杆扶正器 |
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CN201220445279.0U CN202731777U (zh) | 2012-09-04 | 2012-09-04 | 一种圆环式抽油杆扶正器 |
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CN202731777U true CN202731777U (zh) | 2013-02-13 |
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CN201220445279.0U Expired - Lifetime CN202731777U (zh) | 2012-09-04 | 2012-09-04 | 一种圆环式抽油杆扶正器 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106442041A (zh) * | 2016-08-22 | 2017-02-22 | 天津市建联工程勘测有限公司 | 一种击实仪校正器 |
CN108643848A (zh) * | 2018-06-19 | 2018-10-12 | 天津市益彰石油科技发展有限公司 | 抽油杆全护器 |
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2012
- 2012-09-04 CN CN201220445279.0U patent/CN202731777U/zh not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106442041A (zh) * | 2016-08-22 | 2017-02-22 | 天津市建联工程勘测有限公司 | 一种击实仪校正器 |
CN108643848A (zh) * | 2018-06-19 | 2018-10-12 | 天津市益彰石油科技发展有限公司 | 抽油杆全护器 |
CN108643848B (zh) * | 2018-06-19 | 2024-03-08 | 天津市益彰石油科技发展有限公司 | 抽油杆全护器 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C53 | Correction of patent of invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Chen Jianjun Inventor after: Chen Shuqin Inventor before: Chen Jianjun |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN JIANJUN TO: CHEN JIANJUN CHEN SHUQIN |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20161010 Address after: Binhai Economic Zone textile spinning four road 300450 Tianjin City No. 1 room 380 (central office) Patentee after: TIANJIN YIZHANG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 300280 No. 23, Dagang station, Dagang Oilfield, Tianjin, Grand Port Patentee before: Chen Jianjun |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20130213 |