CN201474621U - 一种专用于矿藏钻探的正反旋转自接式钻杆 - Google Patents
一种专用于矿藏钻探的正反旋转自接式钻杆 Download PDFInfo
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- CN201474621U CN201474621U CN2009201900153U CN200920190015U CN201474621U CN 201474621 U CN201474621 U CN 201474621U CN 2009201900153 U CN2009201900153 U CN 2009201900153U CN 200920190015 U CN200920190015 U CN 200920190015U CN 201474621 U CN201474621 U CN 201474621U
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- drill rod
- drilling rod
- sleeve pipe
- clockwise
- self
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2009201900153U CN201474621U (zh) | 2009-07-27 | 2009-07-27 | 一种专用于矿藏钻探的正反旋转自接式钻杆 |
Applications Claiming Priority (1)
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CN2009201900153U CN201474621U (zh) | 2009-07-27 | 2009-07-27 | 一种专用于矿藏钻探的正反旋转自接式钻杆 |
Publications (1)
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CN201474621U true CN201474621U (zh) | 2010-05-19 |
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CN2009201900153U Expired - Fee Related CN201474621U (zh) | 2009-07-27 | 2009-07-27 | 一种专用于矿藏钻探的正反旋转自接式钻杆 |
Country Status (1)
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CN (1) | CN201474621U (zh) |
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2009
- 2009-07-27 CN CN2009201900153U patent/CN201474621U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU XIANGLONG DRILLING EQUIPMENT TECHNOLOGY C Free format text: FORMER NAME: HANGZHOU XIANGLONG DRILLING EQUIPMENT CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: 311504 worker Road, the Fuchun River Town, Tonglu County, Zhejiang Patentee after: Hangzhou Xianglong Drilling Equipment Technology Co., Ltd. Address before: 311504 worker Road, the Fuchun River Town, Tonglu County, Zhejiang Patentee before: Hangzhou Xianglong Drilling Equipment Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20150727 |
|
EXPY | Termination of patent right or utility model |