CN201180866Y - 塑料内衬插口钢环混凝土顶管 - Google Patents
塑料内衬插口钢环混凝土顶管 Download PDFInfo
- Publication number
- CN201180866Y CN201180866Y CNU2008200745809U CN200820074580U CN201180866Y CN 201180866 Y CN201180866 Y CN 201180866Y CN U2008200745809 U CNU2008200745809 U CN U2008200745809U CN 200820074580 U CN200820074580 U CN 200820074580U CN 201180866 Y CN201180866 Y CN 201180866Y
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- concrete
- socket
- steel ring
- coaxial
- inner lining
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200745809U CN201180866Y (zh) | 2008-04-29 | 2008-04-29 | 塑料内衬插口钢环混凝土顶管 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2008200745809U CN201180866Y (zh) | 2008-04-29 | 2008-04-29 | 塑料内衬插口钢环混凝土顶管 |
Publications (1)
Publication Number | Publication Date |
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CN201180866Y true CN201180866Y (zh) | 2009-01-14 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNU2008200745809U Expired - Fee Related CN201180866Y (zh) | 2008-04-29 | 2008-04-29 | 塑料内衬插口钢环混凝土顶管 |
Country Status (1)
Country | Link |
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CN (1) | CN201180866Y (zh) |
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2008
- 2008-04-29 CN CNU2008200745809U patent/CN201180866Y/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: CNOOC Haohua Environmental Engineering Co., Ltd. Assignor: Tianjin Waterline Pipeline Engineering Co., Ltd. Contract record no.: 2011990001114 Denomination of utility model: Plastic liner socket steel ring concrete top tube Granted publication date: 20090114 License type: Exclusive License Record date: 20111226 |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20170429 |