CN201505748U - 新型钻头 - Google Patents
新型钻头 Download PDFInfo
- Publication number
- CN201505748U CN201505748U CN2009200481557U CN200920048155U CN201505748U CN 201505748 U CN201505748 U CN 201505748U CN 2009200481557 U CN2009200481557 U CN 2009200481557U CN 200920048155 U CN200920048155 U CN 200920048155U CN 201505748 U CN201505748 U CN 201505748U
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- diameter expansion
- alloy head
- stepladder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
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- Drilling Tools (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009200481557U CN201505748U (zh) | 2009-08-31 | 2009-08-31 | 新型钻头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009200481557U CN201505748U (zh) | 2009-08-31 | 2009-08-31 | 新型钻头 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201505748U true CN201505748U (zh) | 2010-06-16 |
Family
ID=42466883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009200481557U Expired - Fee Related CN201505748U (zh) | 2009-08-31 | 2009-08-31 | 新型钻头 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201505748U (zh) |
-
2009
- 2009-08-31 CN CN2009200481557U patent/CN201505748U/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 | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzhou Yinlu Numerical Control Knife Factory Assignor: Qian Yinguang Contract record no.: 2010320001059 Denomination of utility model: Novel drill for construction of thread caisson pile and method for forming pile using same Granted publication date: 20100616 License type: Exclusive License Record date: 20100729 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20100831 |